479691231 has 4 divisors (see below), whose sum is σ = 639588312. Its totient is φ = 319794152.

The previous prime is 479691229. The next prime is 479691269. The reversal of 479691231 is 132196974.

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 479691231 - 2¹ = 479691229 is a prime.

It is a super-2 number, since 2×479691231² = 460207354196590722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479691211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79948536 + ... + 79948541.

It is an arithmetic number, because the mean of its divisors is an integer number (159897078).

Almost surely, 2^479691231 is an apocalyptic number.

479691231 is a deficient number, since it is larger than the sum of its proper divisors (159897081).

479691231 is a wasteful number, since it uses less digits than its factorization.

479691231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159897080.

The product of its digits is 81648, while the sum is 42.

The square root of 479691231 is about 21901.8545105203. The cubic root of 479691231 is about 782.8056047544.

The spelling of 479691231 in words is "four hundred seventy-nine million, six hundred ninety-one thousand, two hundred thirty-one".