718404007 has 4 divisors (see below), whose sum is σ = 721487520. Its totient is φ = 715320496.

The previous prime is 718403999. The next prime is 718404017. The reversal of 718404007 is 700404817.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 718404007 - 2³ = 718403999 is a prime.

It is a super-2 number, since 2×718404007² = 1032208634547312098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 718404007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718404017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1541407 + ... + 1541872.

It is an arithmetic number, because the mean of its divisors is an integer number (180371880).

Almost surely, 2^718404007 is an apocalyptic number.

718404007 is a deficient number, since it is larger than the sum of its proper divisors (3083513).

718404007 is a wasteful number, since it uses less digits than its factorization.

718404007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083512.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 718404007 is about 26803.0596574346. The cubic root of 718404007 is about 895.6182102514.

The spelling of 718404007 in words is "seven hundred eighteen million, four hundred four thousand, seven".