716668690 has 16 divisors (see below), whose sum is σ = 1317451392. Its totient is φ = 280567984.

The previous prime is 716668681. The next prime is 716668699. The reversal of 716668690 is 96866617.

It is an interprime number because it is at equal distance from previous prime (716668681) and next prime (716668699).

It is a super-2 number, since 2×716668690² = 1027228022452632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (716668699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761944 + ... + 762883.

It is an arithmetic number, because the mean of its divisors is an integer number (82340712).

Almost surely, 2^716668690 is an apocalyptic number.

716668690 is a deficient number, since it is larger than the sum of its proper divisors (600782702).

716668690 is a wasteful number, since it uses less digits than its factorization.

716668690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524881.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 716668690 is about 26770.6684638244. The cubic root of 716668690 is about 894.8965018735.

The spelling of 716668690 in words is "seven hundred sixteen million, six hundred sixty-eight thousand, six hundred ninety".