479890889 has 4 divisors (see below), whose sum is σ = 481675140. Its totient is φ = 478106640.

The previous prime is 479890813. The next prime is 479890897. The reversal of 479890889 is 988098974.

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 217710025 + 262180864 = 14755^2 + 16192^2 .

It is a cyclic number.

It is not a de Polignac number, because 479890889 - 2¹² = 479886793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479860889) 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, 891722 + ... + 892259.

It is an arithmetic number, because the mean of its divisors is an integer number (120418785).

Almost surely, 2^479890889 is an apocalyptic number.

It is an amenable number.

479890889 is a deficient number, since it is larger than the sum of its proper divisors (1784251).

479890889 is a wasteful number, since it uses less digits than its factorization.

479890889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784250.

The product of its (nonzero) digits is 10450944, while the sum is 62.

The square root of 479890889 is about 21906.4120521823. The cubic root of 479890889 is about 782.9141966375.

The spelling of 479890889 in words is "four hundred seventy-nine million, eight hundred ninety thousand, eight hundred eighty-nine".