68890584 has 32 divisors (see below), whose sum is σ = 196830720. Its totient is φ = 19682976.

The previous prime is 68890571. The next prime is 68890603. The reversal of 68890584 is 48509886.

It is a super-2 number, since 2×68890584² = 9491825127722112, which contains 22 as substring.

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, 204864 + ... + 205199.

It is an arithmetic number, because the mean of its divisors is an integer number (6150960).

Almost surely, 2^68890584 is an apocalyptic number.

It is an amenable number.

68890584 is an abundant number, since it is smaller than the sum of its proper divisors (127940136).

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

68890584 is a wasteful number, since it uses less digits than its factorization.

68890584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410079 (or 410075 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 68890584 is about 8300.0351806483. The cubic root of 68890584 is about 409.9396778198.

The spelling of 68890584 in words is "sixty-eight million, eight hundred ninety thousand, five hundred eighty-four".