31798012 has 6 divisors (see below), whose sum is σ = 55646528. Its totient is φ = 15899004.

The previous prime is 31797979. The next prime is 31798037. The reversal of 31798012 is 21089713.

It is a super-2 number, since 2×31798012² = 2022227134304288, 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 as a sum of consecutive naturals, namely, 3974748 + ... + 3974755.

Almost surely, 2^31798012 is an apocalyptic number.

It is an amenable number.

31798012 is a deficient number, since it is larger than the sum of its proper divisors (23848516).

31798012 is a wasteful number, since it uses less digits than its factorization.

31798012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7949507 (or 7949505 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 31798012 is about 5638.9726014585. The cubic root of 31798012 is about 316.8108083710.

The spelling of 31798012 in words is "thirty-one million, seven hundred ninety-eight thousand, twelve".