718423065 has 12 divisors (see below), whose sum is σ = 1245266724. Its totient is φ = 383158944.

The previous prime is 718423039. The next prime is 718423073. The reversal of 718423065 is 560324817.

It can be written as a sum of positive squares in 2 ways, for example, as 462551049 + 255872016 = 21507^2 + 15996^2 .

It is not a de Polignac number, because 718423065 - 2¹⁰ = 718422041 is a prime.

It is a super-2 number, since 2×718423065² = 1032263400647988450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7982434 + ... + 7982523.

It is an arithmetic number, because the mean of its divisors is an integer number (103772227).

Almost surely, 2^718423065 is an apocalyptic number.

It is an amenable number.

718423065 is a deficient number, since it is larger than the sum of its proper divisors (526843659).

718423065 is a wasteful number, since it uses less digits than its factorization.

718423065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15964968 (or 15964965 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 718423065 is about 26803.4151741900. The cubic root of 718423065 is about 895.6261299089.

The spelling of 718423065 in words is "seven hundred eighteen million, four hundred twenty-three thousand, sixty-five".