897938538 has 64 divisors (see below), whose sum is σ = 2267688960. Its totient is φ = 230959872.

The previous prime is 897938527. The next prime is 897938551. The reversal of 897938538 is 835839798.

It is a happy number.

897938538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10918 + ... + 43761.

It is an arithmetic number, because the mean of its divisors is an integer number (35432640).

Almost surely, 2^897938538 is an apocalyptic number.

897938538 is an abundant number, since it is smaller than the sum of its proper divisors (1369750422).

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

897938538 is a wasteful number, since it uses less digits than its factorization.

897938538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54731.

The product of its digits is 13063680, while the sum is 60.

The square root of 897938538 is about 29965.6226032432. The cubic root of 897938538 is about 964.7516656307.

The spelling of 897938538 in words is "eight hundred ninety-seven million, nine hundred thirty-eight thousand, five hundred thirty-eight".