897381904 has 40 divisors (see below), whose sum is σ = 1783457280. Its totient is φ = 437219328.

The previous prime is 897381791. The next prime is 897381911. The reversal of 897381904 is 409183798.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177232 + ... + 182224.

It is an arithmetic number, because the mean of its divisors is an integer number (44586432).

Almost surely, 2^897381904 is an apocalyptic number.

It is an amenable number.

897381904 is a deficient number, since it is larger than the sum of its proper divisors (886075376).

897381904 is a wasteful number, since it uses less digits than its factorization.

897381904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5287 (or 5281 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 897381904 is about 29956.3332869696. Note that the first 3 decimals coincide. The cubic root of 897381904 is about 964.5522738908.

The spelling of 897381904 in words is "eight hundred ninety-seven million, three hundred eighty-one thousand, nine hundred four".