659937971 has 16 divisors (see below), whose sum is σ = 834375168. Its totient is φ = 506990400.

The previous prime is 659937961. The next prime is 659938003. The reversal of 659937971 is 179739956.

It is not a de Polignac number, because 659937971 - 2⁶ = 659937907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (659937911) 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, 54890 + ... + 65823.

It is an arithmetic number, because the mean of its divisors is an integer number (52148448).

Almost surely, 2^659937971 is an apocalyptic number.

659937971 is a deficient number, since it is larger than the sum of its proper divisors (174437197).

659937971 is a wasteful number, since it uses less digits than its factorization.

659937971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120802.

The product of its digits is 3214890, while the sum is 56.

The square root of 659937971 is about 25689.2578911887. The cubic root of 659937971 is about 870.6314924584.

The spelling of 659937971 in words is "six hundred fifty-nine million, nine hundred thirty-seven thousand, nine hundred seventy-one".