479742985 has 4 divisors (see below), whose sum is σ = 575691588. Its totient is φ = 383794384.

The previous prime is 479742971. The next prime is 479743003. The reversal of 479742985 is 589247974.

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

It can be written as a sum of positive squares in 2 ways, for example, as 77299264 + 402443721 = 8792^2 + 20061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479742985 is a prime.

It is a super-3 number, since 3×479742985³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47974294 + ... + 47974303.

It is an arithmetic number, because the mean of its divisors is an integer number (143922897).

Almost surely, 2^479742985 is an apocalyptic number.

It is an amenable number.

479742985 is a deficient number, since it is larger than the sum of its proper divisors (95948603).

479742985 is an equidigital number, since it uses as much as digits as its factorization.

479742985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95948602.

The product of its digits is 5080320, while the sum is 55.

The square root of 479742985 is about 21903.0359767773. The cubic root of 479742985 is about 782.8337561024.

The spelling of 479742985 in words is "four hundred seventy-nine million, seven hundred forty-two thousand, nine hundred eighty-five".