897689688 has 32 divisors (see below), whose sum is σ = 2564828160. Its totient is φ = 256482720.

The previous prime is 897689677. The next prime is 897689699. The reversal of 897689688 is 886986798.

It is an interprime number because it is at equal distance from previous prime (897689677) and next prime (897689699).

It is a congruent 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, 2671528 + ... + 2671863.

It is an arithmetic number, because the mean of its divisors is an integer number (80150880).

Almost surely, 2^897689688 is an apocalyptic number.

It is an amenable number.

897689688 is an abundant number, since it is smaller than the sum of its proper divisors (1667138472).

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

897689688 is a wasteful number, since it uses less digits than its factorization.

897689688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5343407 (or 5343403 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 69.

The square root of 897689688 is about 29961.4700573920. The cubic root of 897689688 is about 964.6625353160.

The spelling of 897689688 in words is "eight hundred ninety-seven million, six hundred eighty-nine thousand, six hundred eighty-eight".