659579413 has 4 divisors (see below), whose sum is σ = 698378220. Its totient is φ = 620780608.

The previous prime is 659579387. The next prime is 659579419. The reversal of 659579413 is 314975956.

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

It can be written as a sum of positive squares in 2 ways, for example, as 383454724 + 276124689 = 19582^2 + 16617^2 .

It is a cyclic number.

It is not a de Polignac number, because 659579413 - 2²¹ = 657482261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659579419) 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, 19399378 + ... + 19399411.

It is an arithmetic number, because the mean of its divisors is an integer number (174594555).

Almost surely, 2^659579413 is an apocalyptic number.

It is an amenable number.

659579413 is a deficient number, since it is larger than the sum of its proper divisors (38798807).

659579413 is a wasteful number, since it uses less digits than its factorization.

659579413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38798806.

The product of its digits is 1020600, while the sum is 49.

The square root of 659579413 is about 25682.2781894442. The cubic root of 659579413 is about 870.4737865052.

The spelling of 659579413 in words is "six hundred fifty-nine million, five hundred seventy-nine thousand, four hundred thirteen".