897859984 has 40 divisors (see below), whose sum is σ = 2036619648. Its totient is φ = 375409920.

The previous prime is 897859979. The next prime is 897859999. The reversal of 897859984 is 489958798.

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, 93172 + ... + 102355.

Almost surely, 2^897859984 is an apocalyptic number.

It is an amenable number.

897859984 is an abundant number, since it is smaller than the sum of its proper divisors (1138759664).

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

897859984 is a wasteful number, since it uses less digits than its factorization.

897859984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195583 (or 195577 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 67.

The square root of 897859984 is about 29964.3118392530. The cubic root of 897859984 is about 964.7235318148.

The spelling of 897859984 in words is "eight hundred ninety-seven million, eight hundred fifty-nine thousand, nine hundred eighty-four".