718725969 has 12 divisors (see below), whose sum is σ = 1118018356. Its totient is φ = 442292832.

The previous prime is 718725961. The next prime is 718726007. The reversal of 718725969 is 969527817.

It can be written as a sum of positive squares in 2 ways, for example, as 415548225 + 303177744 = 20385^2 + 17412^2 .

It is not a de Polignac number, because 718725969 - 2³ = 718725961 is a prime.

It is a super-2 number, since 2×718725969² = 1033134037029977922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (718725961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3071362 + ... + 3071595.

Almost surely, 2^718725969 is an apocalyptic number.

It is an amenable number.

718725969 is a deficient number, since it is larger than the sum of its proper divisors (399292387).

718725969 is a wasteful number, since it uses less digits than its factorization.

718725969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6142976 (or 6142973 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 718725969 is about 26809.0650527019. The cubic root of 718725969 is about 895.7519845444.

It can be divided in two parts, 71872 and 5969, that added together give a square (77841 = 279²).

The spelling of 718725969 in words is "seven hundred eighteen million, seven hundred twenty-five thousand, nine hundred sixty-nine".