704005685617 has 16 divisors (see below), whose sum is σ = 758799174672. Its totient is φ = 649303799040.

The previous prime is 704005685563. The next prime is 704005685653. The reversal of 704005685617 is 716586500407.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 30163352976 + 673842332641 = 173676^2 + 820879^2 .

It is not a de Polignac number, because 704005685617 - 2³⁹ = 154249871729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (704005685717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135461263 + ... + 135466459.

It is an arithmetic number, because the mean of its divisors is an integer number (47424948417).

Almost surely, 2^704005685617 is an apocalyptic number.

It is an amenable number.

704005685617 is a deficient number, since it is larger than the sum of its proper divisors (54793489055).

704005685617 is a wasteful number, since it uses less digits than its factorization.

704005685617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11988.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 704005685617 in words is "seven hundred four billion, five million, six hundred eighty-five thousand, six hundred seventeen".