30290897 has 16 divisors (see below), whose sum is σ = 37588992. Its totient is φ = 23768640.

The previous prime is 30290879. The next prime is 30290899. The reversal of 30290897 is 79809203.

It is not a de Polignac number, because 30290897 - 2⁶ = 30290833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30290897.

It is not an unprimeable number, because it can be changed into a prime (30290899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10247 + ... + 12867.

It is an arithmetic number, because the mean of its divisors is an integer number (2349312).

Almost surely, 2^30290897 is an apocalyptic number.

It is an amenable number.

30290897 is a deficient number, since it is larger than the sum of its proper divisors (7298095).

30290897 is a wasteful number, since it uses less digits than its factorization.

30290897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 30290897 is about 5503.7166533171. The cubic root of 30290897 is about 311.7243380683.

The spelling of 30290897 in words is "thirty million, two hundred ninety thousand, eight hundred ninety-seven".