321922089 has 24 divisors (see below), whose sum is σ = 478887552. Its totient is φ = 208236960.

The previous prime is 321922061. The next prime is 321922091. The reversal of 321922089 is 980229123.

It is not a de Polignac number, because 321922089 - 2²⁸ = 53486633 is a prime.

It is a super-2 number, since 2×321922089² = 207267662772247842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321922589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142402 + ... + 144644.

It is an arithmetic number, because the mean of its divisors is an integer number (19953648).

Almost surely, 2^321922089 is an apocalyptic number.

It is an amenable number.

321922089 is a deficient number, since it is larger than the sum of its proper divisors (156965463).

321922089 is a wasteful number, since it uses less digits than its factorization.

321922089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717 (or 2714 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 321922089 is about 17942.1874084516. The cubic root of 321922089 is about 685.3571150145.

The spelling of 321922089 in words is "three hundred twenty-one million, nine hundred twenty-two thousand, eighty-nine".