30797768 has 16 divisors (see below), whose sum is σ = 59737500. Its totient is φ = 14867776.

The previous prime is 30797749. The next prime is 30797777. The reversal of 30797768 is 86779703.

It can be written as a sum of positive squares in 2 ways, for example, as 29833444 + 964324 = 5462^2 + 982^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66143 + ... + 66606.

Almost surely, 2^30797768 is an apocalyptic number.

It is an amenable number.

30797768 is a deficient number, since it is larger than the sum of its proper divisors (28939732).

30797768 is a wasteful number, since it uses less digits than its factorization.

30797768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132784 (or 132780 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 30797768 is about 5549.5736773197. The cubic root of 30797768 is about 313.4534693492.

The spelling of 30797768 in words is "thirty million, seven hundred ninety-seven thousand, seven hundred sixty-eight".