716319990 has 64 divisors (see below), whose sum is σ = 2022563520. Its totient is φ = 179781120.

The previous prime is 716319943. The next prime is 716320001. The reversal of 716319990 is 99913617.

716319990 is a `hidden beast` number, since 7 + 1 + 631 + 9 + 9 + 9 + 0 = 666.

It is a super-2 number, since 2×716319990² = 1026228656147200200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73441 + ... + 82620.

It is an arithmetic number, because the mean of its divisors is an integer number (31602555).

Almost surely, 2^716319990 is an apocalyptic number.

716319990 is an abundant number, since it is smaller than the sum of its proper divisors (1306243530).

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

716319990 is a wasteful number, since it uses less digits than its factorization.

716319990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156094 (or 156088 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 716319990 is about 26764.1549464951. The cubic root of 716319990 is about 894.7513390118.

The spelling of 716319990 in words is "seven hundred sixteen million, three hundred nineteen thousand, nine hundred ninety".