30823969 has 4 divisors (see below), whose sum is σ = 33626160. Its totient is φ = 28021780.

The previous prime is 30823943. The next prime is 30823973. The reversal of 30823969 is 96932803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30823969 - 2¹⁹ = 30299681 is a prime.

It is a super-2 number, since 2×30823969² = 1900234129825922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30823769) 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, 1401079 + ... + 1401100.

It is an arithmetic number, because the mean of its divisors is an integer number (8406540).

Almost surely, 2^30823969 is an apocalyptic number.

It is an amenable number.

30823969 is a deficient number, since it is larger than the sum of its proper divisors (2802191).

30823969 is a wasteful number, since it uses less digits than its factorization.

30823969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802190.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 30823969 is about 5551.9338072423. The cubic root of 30823969 is about 313.5423336510.

The spelling of 30823969 in words is "thirty million, eight hundred twenty-three thousand, nine hundred sixty-nine".