320889633 has 8 divisors (see below), whose sum is σ = 436956288. Its totient is φ = 209374704.

The previous prime is 320889623. The next prime is 320889659. The reversal of 320889633 is 336988023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320889633 - 2⁴ = 320889617 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (320889623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137766 + ... + 1138047.

It is an arithmetic number, because the mean of its divisors is an integer number (54619536).

Almost surely, 2^320889633 is an apocalyptic number.

It is an amenable number.

320889633 is a deficient number, since it is larger than the sum of its proper divisors (116066655).

320889633 is a wasteful number, since it uses less digits than its factorization.

320889633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275863.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 320889633 is about 17913.3925597582. The cubic root of 320889633 is about 684.6236467789.

The spelling of 320889633 in words is "three hundred twenty million, eight hundred eighty-nine thousand, six hundred thirty-three".