439679064889 has 9 divisors (see below), whose sum is σ = 448167243279. Its totient is φ = 431348753160.

The previous prime is 439679064841. The next prime is 439679064893. The reversal of 439679064889 is 988460976934.

The square root of 439679064889 is 663083.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 316963370025 + 122715694864 = 562995^2 + 350308^2 .

It is not a de Polignac number, because 439679064889 - 2⁷ = 439679064761 is a prime.

It is a super-3 number, since 3×439679064889³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (439679064589) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 35137144 + ... + 35149654.

Almost surely, 2^439679064889 is an apocalyptic number.

439679064889 is the 663083-rd square number.

439679064889 is the 331542-nd centered octagonal number.

It is an amenable number.

439679064889 is a deficient number, since it is larger than the sum of its proper divisors (8488178390).

439679064889 is an frugal number, since it uses more digits than its factorization.

439679064889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25128 (or 12564 counting only the distinct ones).

The product of its (nonzero) digits is 564350976, while the sum is 73.

The spelling of 439679064889 in words is "four hundred thirty-nine billion, six hundred seventy-nine million, sixty-four thousand, eight hundred eighty-nine".