659409413 has 16 divisors (see below), whose sum is σ = 753666480. Its totient is φ = 571539456.

The previous prime is 659409409. The next prime is 659409419. The reversal of 659409413 is 314904956.

It can be written as a sum of positive squares in 8 ways, for example, as 4919524 + 654489889 = 2218^2 + 25583^2 .

It is not a de Polignac number, because 659409413 - 2² = 659409409 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 (659409419) 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, 97733 + ... + 104261.

It is an arithmetic number, because the mean of its divisors is an integer number (47104155).

Almost surely, 2^659409413 is an apocalyptic number.

It is an amenable number.

659409413 is a deficient number, since it is larger than the sum of its proper divisors (94257067).

659409413 is a wasteful number, since it uses less digits than its factorization.

659409413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7016.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 659409413 is about 25678.9683009267. The cubic root of 659409413 is about 870.3989947738.

The spelling of 659409413 in words is "six hundred fifty-nine million, four hundred nine thousand, four hundred thirteen".