320427087 has 16 divisors (see below), whose sum is σ = 430261632. Its totient is φ = 212111840.

The previous prime is 320427073. The next prime is 320427113. The reversal of 320427087 is 780724023.

It is a cyclic number.

It is not a de Polignac number, because 320427087 - 2²³ = 312038479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320427017) 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, 329512 + ... + 330482.

It is an arithmetic number, because the mean of its divisors is an integer number (26891352).

Almost surely, 2^320427087 is an apocalyptic number.

320427087 is a deficient number, since it is larger than the sum of its proper divisors (109834545).

320427087 is a wasteful number, since it uses less digits than its factorization.

320427087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 320427087 is about 17900.4772841397. The cubic root of 320427087 is about 684.2945386026.

The spelling of 320427087 in words is "three hundred twenty million, four hundred twenty-seven thousand, eighty-seven".