30797664 has 48 divisors (see below), whose sum is σ = 82382832. Its totient is φ = 10070528.

The previous prime is 30797629. The next prime is 30797677. The reversal of 30797664 is 46679703.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×30797664² = 1896992215713792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2062 + ... + 8114.

It is an arithmetic number, because the mean of its divisors is an integer number (1716309).

Almost surely, 2^30797664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30797664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41191416).

30797664 is an abundant number, since it is smaller than the sum of its proper divisors (51585168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30797664 is a wasteful number, since it uses less digits than its factorization.

30797664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119 (or 6111 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 30797664 is about 5549.5643072227. The cubic root of 30797664 is about 313.4531165184.

The spelling of 30797664 in words is "thirty million, seven hundred ninety-seven thousand, six hundred sixty-four".