479693491 has 4 divisors (see below), whose sum is σ = 480015000. Its totient is φ = 479371984.

The previous prime is 479693479. The next prime is 479693507. The reversal of 479693491 is 194396974.

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 479693491 - 2⁷ = 479693363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479693791) 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, 158506 + ... + 161503.

It is an arithmetic number, because the mean of its divisors is an integer number (120003750).

Almost surely, 2^479693491 is an apocalyptic number.

479693491 is a deficient number, since it is larger than the sum of its proper divisors (321509).

479693491 is a wasteful number, since it uses less digits than its factorization.

479693491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321508.

The product of its digits is 1469664, while the sum is 52.

The square root of 479693491 is about 21901.9061042641. The cubic root of 479693491 is about 782.8068341132.

The spelling of 479693491 in words is "four hundred seventy-nine million, six hundred ninety-three thousand, four hundred ninety-one".