479540247 has 8 divisors (see below), whose sum is σ = 645045744. Its totient is φ = 316864128.

The previous prime is 479540231. The next prime is 479540249. The reversal of 479540247 is 742045974.

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

It is not a de Polignac number, because 479540247 - 2⁴ = 479540231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 479540199 and 479540208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479540249) 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, 706948 + ... + 707625.

It is an arithmetic number, because the mean of its divisors is an integer number (80630718).

Almost surely, 2^479540247 is an apocalyptic number.

479540247 is a deficient number, since it is larger than the sum of its proper divisors (165505497).

479540247 is a wasteful number, since it uses less digits than its factorization.

479540247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414689.

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 479540247 is about 21898.4074078459. The cubic root of 479540247 is about 782.7234661367.

The spelling of 479540247 in words is "four hundred seventy-nine million, five hundred forty thousand, two hundred forty-seven".