720976984 has 72 divisors (see below), whose sum is σ = 1702965060. Its totient is φ = 285195456.

The previous prime is 720976961. The next prime is 720977009. The reversal of 720976984 is 489679027.

It is a super-2 number, since 2×720976984² = 1039615622915472512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 60807 + ... + 71689.

Almost surely, 2^720976984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 720976984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851482530).

720976984 is an abundant number, since it is smaller than the sum of its proper divisors (981988076).

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

720976984 is a wasteful number, since it uses less digits than its factorization.

720976984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10929 (or 10905 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The square root of 720976984 is about 26851.0145804586. The cubic root of 720976984 is about 896.6861605991.

The spelling of 720976984 in words is "seven hundred twenty million, nine hundred seventy-six thousand, nine hundred eighty-four".