31639034 has 16 divisors (see below), whose sum is σ = 55988736. Its totient is φ = 13122000.

The previous prime is 31639021. The next prime is 31639043. The reversal of 31639034 is 43093613.

It is a junction number, because it is equal to n+sod(n) for n = 31638988 and 31639006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36017 + ... + 36884.

It is an arithmetic number, because the mean of its divisors is an integer number (3499296).

Almost surely, 2^31639034 is an apocalyptic number.

31639034 is a deficient number, since it is larger than the sum of its proper divisors (24349702).

31639034 is a wasteful number, since it uses less digits than its factorization.

31639034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72941.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 31639034 is about 5624.8585759999. The cubic root of 31639034 is about 316.2819480605.

The spelling of 31639034 in words is "thirty-one million, six hundred thirty-nine thousand, thirty-four".