718536097 has 4 divisors (see below), whose sum is σ = 719192196. Its totient is φ = 717880000.

The previous prime is 718536083. The next prime is 718536109. The reversal of 718536097 is 790635817.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790635817 = 5147 ⋅153611.

It can be written as a sum of positive squares in 2 ways, for example, as 155850256 + 562685841 = 12484^2 + 23721^2 .

It is a cyclic number.

It is not a de Polignac number, because 718536097 - 2⁷ = 718535969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (718536017) 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, 326404 + ... + 328597.

It is an arithmetic number, because the mean of its divisors is an integer number (179798049).

Almost surely, 2^718536097 is an apocalyptic number.

It is an amenable number.

718536097 is a deficient number, since it is larger than the sum of its proper divisors (656099).

718536097 is a wasteful number, since it uses less digits than its factorization.

718536097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656098.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 718536097 is about 26805.5236285360. The cubic root of 718536097 is about 895.6730981039.

The spelling of 718536097 in words is "seven hundred eighteen million, five hundred thirty-six thousand, ninety-seven".