325426639 has 4 divisors (see below), whose sum is σ = 325498320. Its totient is φ = 325354960.

The previous prime is 325426613. The next prime is 325426657. The reversal of 325426639 is 936624523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936624523 = 1723 ⋅543601.

It is a cyclic number.

It is not a de Polignac number, because 325426639 - 2²³ = 317038031 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 (325427639) 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, 28534 + ... + 38275.

It is an arithmetic number, because the mean of its divisors is an integer number (81374580).

Almost surely, 2^325426639 is an apocalyptic number.

325426639 is a deficient number, since it is larger than the sum of its proper divisors (71681).

325426639 is an equidigital number, since it uses as much as digits as its factorization.

325426639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71680.

The product of its digits is 233280, while the sum is 40.

The square root of 325426639 is about 18039.5853333717. The cubic root of 325426639 is about 687.8351522471.

The spelling of 325426639 in words is "three hundred twenty-five million, four hundred twenty-six thousand, six hundred thirty-nine".