259866423 has 6 divisors (see below), whose sum is σ = 375362624. Its totient is φ = 173244276.

The previous prime is 259866407. The next prime is 259866427. The reversal of 259866423 is 324668952.

It is not a de Polignac number, because 259866423 - 2⁴ = 259866407 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 (259866427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14437015 + ... + 14437032.

Almost surely, 2^259866423 is an apocalyptic number.

259866423 is a deficient number, since it is larger than the sum of its proper divisors (115496201).

259866423 is a wasteful number, since it uses less digits than its factorization.

259866423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28874053 (or 28874050 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 259866423 is about 16120.3729175227. The cubic root of 259866423 is about 638.1411091397.

The spelling of 259866423 in words is "two hundred fifty-nine million, eight hundred sixty-six thousand, four hundred twenty-three".