31696632 has 96 divisors (see below), whose sum is σ = 96744960. Its totient is φ = 9288000.

The previous prime is 31696603. The next prime is 31696657. The reversal of 31696632 is 23669613.

31696632 is a `hidden beast` number, since 3 + 16 + 9 + 6 + 632 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23907 + ... + 25197.

It is an arithmetic number, because the mean of its divisors is an integer number (1007760).

Almost surely, 2^31696632 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 31696632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48372480).

31696632 is an abundant number, since it is smaller than the sum of its proper divisors (65048328).

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

31696632 is a wasteful number, since it uses less digits than its factorization.

31696632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345 (or 1338 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 31696632 is about 5629.9761988840. The cubic root of 31696632 is about 316.4737592704.

It can be divided in two parts, 3169 and 6632, that added together give a square (9801 = 99²).

The spelling of 31696632 in words is "thirty-one million, six hundred ninety-six thousand, six hundred thirty-two".