479178867 has 4 divisors (see below), whose sum is σ = 638905160. Its totient is φ = 319452576.

The previous prime is 479178853. The next prime is 479178877. The reversal of 479178867 is 768871974.

It is a happy number.

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

It is not a de Polignac number, because 479178867 - 2²² = 474984563 is a prime.

It is a super-2 number, since 2×479178867² = 459224773158807378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479178877) 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, 79863142 + ... + 79863147.

It is an arithmetic number, because the mean of its divisors is an integer number (159726290).

Almost surely, 2^479178867 is an apocalyptic number.

479178867 is a deficient number, since it is larger than the sum of its proper divisors (159726293).

479178867 is a wasteful number, since it uses less digits than its factorization.

479178867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159726292.

The product of its digits is 4741632, while the sum is 57.

The square root of 479178867 is about 21890.1545677503. The cubic root of 479178867 is about 782.5267974233.

The spelling of 479178867 in words is "four hundred seventy-nine million, one hundred seventy-eight thousand, eight hundred sixty-seven".