31477482 has 12 divisors (see below), whose sum is σ = 68201250. Its totient is φ = 10492488.

The previous prime is 31477447. The next prime is 31477483. The reversal of 31477482 is 28477413.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27029601 + 4447881 = 5199^2 + 2109^2 .

It is not an unprimeable number, because it can be changed into a prime (31477483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 874357 + ... + 874392.

Almost surely, 2^31477482 is an apocalyptic number.

31477482 is an abundant number, since it is smaller than the sum of its proper divisors (36723768).

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

31477482 is a wasteful number, since it uses less digits than its factorization.

31477482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748757 (or 1748754 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 31477482 is about 5610.4796586388. The cubic root of 31477482 is about 315.7427070306.

The spelling of 31477482 in words is "thirty-one million, four hundred seventy-seven thousand, four hundred eighty-two".