31676988 has 48 divisors (see below), whose sum is σ = 85111040. Its totient is φ = 8982144.

The previous prime is 31676977. The next prime is 31677007. The reversal of 31676988 is 88967613.

It is a super-5 number, since 5×31676988⁵ (a number of 39 digits) contains 55555 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10320 + ... + 13032.

Almost surely, 2^31676988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31676988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42555520).

31676988 is an abundant number, since it is smaller than the sum of its proper divisors (53434052).

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

31676988 is a wasteful number, since it uses less digits than its factorization.

31676988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866 (or 2864 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 31676988 is about 5628.2313385290. The cubic root of 31676988 is about 316.4083675146.

The spelling of 31676988 in words is "thirty-one million, six hundred seventy-six thousand, nine hundred eighty-eight".