479881663 has 4 divisors (see below), whose sum is σ = 488936088. Its totient is φ = 470827240.

The previous prime is 479881657. The next prime is 479881669. The reversal of 479881663 is 366188974.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (479881657) and next prime (479881669).

It is a cyclic number.

It is not a de Polignac number, because 479881663 - 2²¹ = 477784511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 479881663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479881669) 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, 4527133 + ... + 4527238.

It is an arithmetic number, because the mean of its divisors is an integer number (122234022).

Almost surely, 2^479881663 is an apocalyptic number.

479881663 is a deficient number, since it is larger than the sum of its proper divisors (9054425).

479881663 is an equidigital number, since it uses as much as digits as its factorization.

479881663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054424.

The product of its digits is 1741824, while the sum is 52.

The square root of 479881663 is about 21906.2014735554. The cubic root of 479881663 is about 782.9091793771.

The spelling of 479881663 in words is "four hundred seventy-nine million, eight hundred eighty-one thousand, six hundred sixty-three".