30797516 has 6 divisors (see below), whose sum is σ = 53895660. Its totient is φ = 15398756.

The previous prime is 30797513. The next prime is 30797521. The reversal of 30797516 is 61579703.

It is a self number, because there is not a number n which added to its sum of digits gives 30797516.

It is not an unprimeable number, because it can be changed into a prime (30797513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3849686 + ... + 3849693.

It is an arithmetic number, because the mean of its divisors is an integer number (8982610).

Almost surely, 2^30797516 is an apocalyptic number.

It is an amenable number.

30797516 is a deficient number, since it is larger than the sum of its proper divisors (23098144).

30797516 is a wasteful number, since it uses less digits than its factorization.

30797516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7699383 (or 7699381 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 30797516 is about 5549.5509728265. The cubic root of 30797516 is about 313.4526144118.

It can be divided in two parts, 30797 and 516, that added together give a palindrome (31313).

The spelling of 30797516 in words is "thirty million, seven hundred ninety-seven thousand, five hundred sixteen".