731916968 has 8 divisors (see below), whose sum is σ = 1372344330. Its totient is φ = 365958480.

The previous prime is 731916967. The next prime is 731916973. The reversal of 731916968 is 869619137.

It can be written as a sum of positive squares in only one way, i.e., 609991204 + 121925764 = 24698^2 + 11042^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (731916967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45744803 + ... + 45744818.

Almost surely, 2^731916968 is an apocalyptic number.

It is an amenable number.

731916968 is a deficient number, since it is larger than the sum of its proper divisors (640427362).

731916968 is a wasteful number, since it uses less digits than its factorization.

731916968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91489627 (or 91489623 counting only the distinct ones).

The product of its digits is 489888, while the sum is 50.

The square root of 731916968 is about 27053.9639979061. The cubic root of 731916968 is about 901.1988008411.

The spelling of 731916968 in words is "seven hundred thirty-one million, nine hundred sixteen thousand, nine hundred sixty-eight".