439898437 has 16 divisors (see below), whose sum is σ = 502641792. Its totient is φ = 381078720.

The previous prime is 439898413. The next prime is 439898447. The reversal of 439898437 is 734898934.

It is the 8563-rd star number.

It is not a de Polignac number, because 439898437 - 2¹⁵ = 439865669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439898447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66943 + ... + 73219.

It is an arithmetic number, because the mean of its divisors is an integer number (31415112).

Almost surely, 2^439898437 is an apocalyptic number.

It is an amenable number.

439898437 is a deficient number, since it is larger than the sum of its proper divisors (62743355).

439898437 is a wasteful number, since it uses less digits than its factorization.

439898437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6588.

The product of its digits is 5225472, while the sum is 55.

The square root of 439898437 is about 20973.7559106613. The cubic root of 439898437 is about 760.5319665489.

The spelling of 439898437 in words is "four hundred thirty-nine million, eight hundred ninety-eight thousand, four hundred thirty-seven".