326307887 has 4 divisors (see below), whose sum is σ = 333250656. Its totient is φ = 319365120.

The previous prime is 326307857. The next prime is 326307893. The reversal of 326307887 is 788703623.

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

It is a cyclic number.

It is not a de Polignac number, because 326307887 - 2⁶ = 326307823 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 (326307857) 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, 3471314 + ... + 3471407.

It is an arithmetic number, because the mean of its divisors is an integer number (83312664).

Almost surely, 2^326307887 is an apocalyptic number.

326307887 is a deficient number, since it is larger than the sum of its proper divisors (6942769).

326307887 is an equidigital number, since it uses as much as digits as its factorization.

326307887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6942768.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 326307887 is about 18063.9942150124. The cubic root of 326307887 is about 688.4554733389.

The spelling of 326307887 in words is "three hundred twenty-six million, three hundred seven thousand, eight hundred eighty-seven".