30997060 has 12 divisors (see below), whose sum is σ = 65093868. Its totient is φ = 12398816.

The previous prime is 30997051. The next prime is 30997061. The reversal of 30997060 is 6079903.

It can be written as a sum of positive squares in 2 ways, for example, as 3936256 + 27060804 = 1984^2 + 5202^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30997061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774907 + ... + 774946.

It is an arithmetic number, because the mean of its divisors is an integer number (5424489).

Almost surely, 2^30997060 is an apocalyptic number.

It is an amenable number.

30997060 is an abundant number, since it is smaller than the sum of its proper divisors (34096808).

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

30997060 is a wasteful number, since it uses less digits than its factorization.

30997060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549862 (or 1549860 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 30997060 is about 5567.5003367759. The cubic root of 30997060 is about 314.1281341089.

The spelling of 30997060 in words is "thirty million, nine hundred ninety-seven thousand, sixty".