31470996 has 12 divisors (see below), whose sum is σ = 73432352. Its totient is φ = 10490328.

The previous prime is 31470991. The next prime is 31470997. The reversal of 31470996 is 69907413.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31470991) 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 3 ways as a sum of consecutive naturals, for example, 1311280 + ... + 1311303.

Almost surely, 2^31470996 is an apocalyptic number.

It is an amenable number.

31470996 is an abundant number, since it is smaller than the sum of its proper divisors (41961356).

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

31470996 is a wasteful number, since it uses less digits than its factorization.

31470996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622590 (or 2622588 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 31470996 is about 5609.9016034152. The cubic root of 31470996 is about 315.7210190625.

The spelling of 31470996 in words is "thirty-one million, four hundred seventy thousand, nine hundred ninety-six".