659440975 has 12 divisors (see below), whose sum is σ = 819361000. Its totient is φ = 526485600.

The previous prime is 659440967. The next prime is 659441011. The reversal of 659440975 is 579044956.

It is a happy number.

It is not a de Polignac number, because 659440975 - 2³ = 659440967 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13956 + ... + 38905.

Almost surely, 2^659440975 is an apocalyptic number.

659440975 is a deficient number, since it is larger than the sum of its proper divisors (159920025).

659440975 is a wasteful number, since it uses less digits than its factorization.

659440975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53370 (or 53365 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 49.

The square root of 659440975 is about 25679.5828431850. The cubic root of 659440975 is about 870.4128814903.

The spelling of 659440975 in words is "six hundred fifty-nine million, four hundred forty thousand, nine hundred seventy-five".