30897905284 has 27 divisors (see below), whose sum is σ = 54486065431. Its totient is φ = 15331357160.

The previous prime is 30897905273. The next prime is 30897905287. The reversal of 30897905284 is 48250979803.

The square root of 30897905284 is 175778.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30897905287) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 62928279 + ... + 62928769.

Almost surely, 2^30897905284 is an apocalyptic number.

30897905284 is the 175778-th square number.

It is an amenable number.

30897905284 is a deficient number, since it is larger than the sum of its proper divisors (23588160147).

30897905284 is an frugal number, since it uses more digits than its factorization.

30897905284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 30897905284 in words is "thirty billion, eight hundred ninety-seven million, nine hundred five thousand, two hundred eighty-four".