30970900 has 36 divisors (see below), whose sum is σ = 67487868. Its totient is φ = 12336640.

The previous prime is 30970897. The next prime is 30970913. The reversal of 30970900 is 907903.

It can be written as a sum of positive squares in 6 ways, for example, as 698896 + 30272004 = 836^2 + 5502^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31212 + ... + 32188.

It is an arithmetic number, because the mean of its divisors is an integer number (1874663).

Almost surely, 2^30970900 is an apocalyptic number.

It is an amenable number.

30970900 is an abundant number, since it is smaller than the sum of its proper divisors (36516968).

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

30970900 is a wasteful number, since it uses less digits than its factorization.

30970900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308 (or 1301 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 30970900 is about 5565.1504921251. The cubic root of 30970900 is about 314.0397396524.

The spelling of 30970900 in words is "thirty million, nine hundred seventy thousand, nine hundred".