321464879 has 4 divisors (see below), whose sum is σ = 323512584. Its totient is φ = 319417176.

The previous prime is 321464873. The next prime is 321464903. The reversal of 321464879 is 978464123.

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 321464879 - 2¹⁶ = 321399343 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 (321464873) 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, 1023617 + ... + 1023930.

It is an arithmetic number, because the mean of its divisors is an integer number (80878146).

Almost surely, 2^321464879 is an apocalyptic number.

321464879 is a deficient number, since it is larger than the sum of its proper divisors (2047705).

321464879 is a wasteful number, since it uses less digits than its factorization.

321464879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047704.

The product of its digits is 290304, while the sum is 44.

The square root of 321464879 is about 17929.4416812125. The cubic root of 321464879 is about 685.0325016990.

The spelling of 321464879 in words is "three hundred twenty-one million, four hundred sixty-four thousand, eight hundred seventy-nine".