30946969 has 3 divisors (see below), whose sum is σ = 30952533. Its totient is φ = 30941406.

The previous prime is 30946961. The next prime is 30946999. The reversal of 30946969 is 96964903.

The square root of 30946969 is 5563.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96964903 = 7 ⋅13852129.

It is not a de Polignac number, because 30946969 - 2³ = 30946961 is a prime.

It is a super-2 number, since 2×30946969² = 1915429780573922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30946961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2782 + ... + 8344.

It is an arithmetic number, because the mean of its divisors is an integer number (10317511).

Almost surely, 2^30946969 is an apocalyptic number.

30946969 is the 5563-rd square number.

30946969 is the 2782-nd centered octagonal number.

It is an amenable number.

30946969 is a deficient number, since it is larger than the sum of its proper divisors (5564).

30946969 is an frugal number, since it uses more digits than its factorization.

30946969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11126 (or 5563 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 46.

The cubic root of 30946969 is about 313.9588333660.

It can be divided in two parts, 309 and 46969, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 30946969 in words is "thirty million, nine hundred forty-six thousand, nine hundred sixty-nine".