31479854 has 32 divisors (see below), whose sum is σ = 55704000. Its totient is φ = 13335840.

The previous prime is 31479829. The next prime is 31479857. The reversal of 31479854 is 45897413.

It is a super-2 number, since 2×31479854² = 1981962415722632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31479857) 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 15 ways as a sum of consecutive naturals, for example, 74564 + ... + 74984.

It is an arithmetic number, because the mean of its divisors is an integer number (1740750).

Almost surely, 2^31479854 is an apocalyptic number.

31479854 is a deficient number, since it is larger than the sum of its proper divisors (24224146).

31479854 is a wasteful number, since it uses less digits than its factorization.

31479854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 539 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 31479854 is about 5610.6910447823. The cubic root of 31479854 is about 315.7506378099.

The spelling of 31479854 in words is "thirty-one million, four hundred seventy-nine thousand, eight hundred fifty-four".