718650369 has 6 divisors (see below), whose sum is σ = 1038050546. Its totient is φ = 479100240.

The previous prime is 718650353. The next prime is 718650377. The reversal of 718650369 is 963056817.

It is a happy number.

718650369 is a `hidden beast` number, since 7 + 1 + 86 + 503 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 591073344 + 127577025 = 24312^2 + 11295^2 .

It is not a de Polignac number, because 718650369 - 2⁴ = 718650353 is a prime.

It is a super-2 number, since 2×718650369² = 1032916705727672322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (718650349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39925012 + ... + 39925029.

Almost surely, 2^718650369 is an apocalyptic number.

It is an amenable number.

718650369 is a deficient number, since it is larger than the sum of its proper divisors (319400177).

718650369 is a wasteful number, since it uses less digits than its factorization.

718650369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79850047 (or 79850044 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 718650369 is about 26807.6550447815. The cubic root of 718650369 is about 895.7205765495.

The spelling of 718650369 in words is "seven hundred eighteen million, six hundred fifty thousand, three hundred sixty-nine".