478579731 has 8 divisors (see below), whose sum is σ = 729264384. Its totient is φ = 273474120.

The previous prime is 478579697. The next prime is 478579741. The reversal of 478579731 is 137975874.

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

It is not a de Polignac number, because 478579731 - 2¹¹ = 478577683 is a prime.

It is a super-2 number, since 2×478579731² = 458077117848064722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478579741) 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, 11394735 + ... + 11394776.

It is an arithmetic number, because the mean of its divisors is an integer number (91158048).

Almost surely, 2^478579731 is an apocalyptic number.

478579731 is a deficient number, since it is larger than the sum of its proper divisors (250684653).

478579731 is a wasteful number, since it uses less digits than its factorization.

478579731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22789521.

The product of its digits is 1481760, while the sum is 51.

The square root of 478579731 is about 21876.4652309280. The cubic root of 478579731 is about 782.2005201558.

The spelling of 478579731 in words is "four hundred seventy-eight million, five hundred seventy-nine thousand, seven hundred thirty-one".