731057064 has 16 divisors (see below), whose sum is σ = 1827642720. Its totient is φ = 243685680.

The previous prime is 731057051. The next prime is 731057077. The reversal of 731057064 is 460750137.

It is an interprime number because it is at equal distance from previous prime (731057051) and next prime (731057077).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15230332 + ... + 15230379.

It is an arithmetic number, because the mean of its divisors is an integer number (114227670).

Almost surely, 2^731057064 is an apocalyptic number.

It is an amenable number.

731057064 is an abundant number, since it is smaller than the sum of its proper divisors (1096585656).

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

731057064 is a wasteful number, since it uses less digits than its factorization.

731057064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30460720 (or 30460716 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 731057064 is about 27038.0669427383. The cubic root of 731057064 is about 900.8457334072.

The spelling of 731057064 in words is "seven hundred thirty-one million, fifty-seven thousand, sixty-four".