30864769 has 4 divisors (see below), whose sum is σ = 33238996. Its totient is φ = 28490544.

The previous prime is 30864763. The next prime is 30864793. The reversal of 30864769 is 96746803.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96746803 = 19 ⋅5091937.

It can be written as a sum of positive squares in 2 ways, for example, as 10497600 + 20367169 = 3240^2 + 4513^2 .

It is a cyclic number.

It is not a de Polignac number, because 30864769 - 2⁵ = 30864737 is a prime.

It is a super-2 number, since 2×30864769² = 1905267930846722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30864763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187094 + ... + 1187119.

It is an arithmetic number, because the mean of its divisors is an integer number (8309749).

Almost surely, 2^30864769 is an apocalyptic number.

It is an amenable number.

30864769 is a deficient number, since it is larger than the sum of its proper divisors (2374227).

30864769 is a wasteful number, since it uses less digits than its factorization.

30864769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2374226.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 30864769 is about 5555.6069875397. The cubic root of 30864769 is about 313.6806122647.

The spelling of 30864769 in words is "thirty million, eight hundred sixty-four thousand, seven hundred sixty-nine".