31590068 has 6 divisors (see below), whose sum is σ = 55282626. Its totient is φ = 15795032.

The previous prime is 31590061. The next prime is 31590071. The reversal of 31590068 is 86009513.

It can be written as a sum of positive squares in only one way, i.e., 19465744 + 12124324 = 4412^2 + 3482^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31590061) 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 as a sum of consecutive naturals, namely, 3948755 + ... + 3948762.

It is an arithmetic number, because the mean of its divisors is an integer number (9213771).

Almost surely, 2^31590068 is an apocalyptic number.

It is an amenable number.

31590068 is a deficient number, since it is larger than the sum of its proper divisors (23692558).

31590068 is a wasteful number, since it uses less digits than its factorization.

31590068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7897521 (or 7897519 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 31590068 is about 5620.5042478411. The cubic root of 31590068 is about 316.1186997322.

The spelling of 31590068 in words is "thirty-one million, five hundred ninety thousand, sixty-eight".