897976838 has 16 divisors (see below), whose sum is σ = 1477541520. Its totient is φ = 405914400.

The previous prime is 897976823. The next prime is 897976843. The reversal of 897976838 is 838679798.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108773 + ... + 116736.

It is an arithmetic number, because the mean of its divisors is an integer number (92346345).

Almost surely, 2^897976838 is an apocalyptic number.

897976838 is a deficient number, since it is larger than the sum of its proper divisors (579564682).

897976838 is a wasteful number, since it uses less digits than its factorization.

897976838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225703.

The product of its digits is 36578304, while the sum is 65.

The square root of 897976838 is about 29966.2616620759. The cubic root of 897976838 is about 964.7653820348.

The spelling of 897976838 in words is "eight hundred ninety-seven million, nine hundred seventy-six thousand, eight hundred thirty-eight".