31673488 has 80 divisors (see below), whose sum is σ = 78280704. Its totient is φ = 12055680.

The previous prime is 31673483. The next prime is 31673503. The reversal of 31673488 is 88437613.

It is a super-2 number, since 2×31673488² = 2006419684172288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31673488.

It is not an unprimeable number, because it can be changed into a prime (31673483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57631 + ... + 58177.

Almost surely, 2^31673488 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 31673488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39140352).

31673488 is an abundant number, since it is smaller than the sum of its proper divisors (46607216).

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

31673488 is a wasteful number, since it uses less digits than its factorization.

31673488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 614 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 31673488 is about 5627.9203974470. The cubic root of 31673488 is about 316.3967137332.

The spelling of 31673488 in words is "thirty-one million, six hundred seventy-three thousand, four hundred eighty-eight".