659471407 has 4 divisors (see below), whose sum is σ = 753681616. Its totient is φ = 565261200.

The previous prime is 659471383. The next prime is 659471411. The reversal of 659471407 is 704174956.

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

It is not a de Polignac number, because 659471407 - 2⁷ = 659471279 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 (659474407) 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, 47105094 + ... + 47105107.

It is an arithmetic number, because the mean of its divisors is an integer number (188420404).

Almost surely, 2^659471407 is an apocalyptic number.

659471407 is a deficient number, since it is larger than the sum of its proper divisors (94210209).

659471407 is an equidigital number, since it uses as much as digits as its factorization.

659471407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94210208.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 659471407 is about 25680.1753693389. The cubic root of 659471407 is about 870.4262706074.

The spelling of 659471407 in words is "six hundred fifty-nine million, four hundred seventy-one thousand, four hundred seven".