31477468 has 12 divisors (see below), whose sum is σ = 60093432. Its totient is φ = 14307920.

The previous prime is 31477447. The next prime is 31477483. The reversal of 31477468 is 86477413.

It is a self number, because there is not a number n which added to its sum of digits gives 31477468.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 357655 + ... + 357742.

It is an arithmetic number, because the mean of its divisors is an integer number (5007786).

Almost surely, 2^31477468 is an apocalyptic number.

It is an amenable number.

31477468 is a deficient number, since it is larger than the sum of its proper divisors (28615964).

31477468 is a wasteful number, since it uses less digits than its factorization.

31477468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715412 (or 715410 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 31477468 is about 5610.4784109735. The cubic root of 31477468 is about 315.7426602204.

Subtracting 31477468 from its reverse (86477413), we obtain a palindrome (54999945).

The spelling of 31477468 in words is "thirty-one million, four hundred seventy-seven thousand, four hundred sixty-eight".