718645085 has 8 divisors (see below), whose sum is σ = 892111320. Its totient is φ = 555091264.

The previous prime is 718645061. The next prime is 718645091. The reversal of 718645085 is 580546817.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 152300281 + 566344804 = 12341^2 + 23798^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 718645085 - 2⁶ = 718645021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2477942 + ... + 2478231.

It is an arithmetic number, because the mean of its divisors is an integer number (111513915).

Almost surely, 2^718645085 is an apocalyptic number.

It is an amenable number.

718645085 is a deficient number, since it is larger than the sum of its proper divisors (173466235).

718645085 is a wasteful number, since it uses less digits than its factorization.

718645085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956207.

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 718645085 is about 26807.5564906614. The cubic root of 718645085 is about 895.7183812311.

The spelling of 718645085 in words is "seven hundred eighteen million, six hundred forty-five thousand, eighty-five".