113993439 has 16 divisors (see below), whose sum is σ = 174170112. Its totient is φ = 64964448.

The previous prime is 113993423. The next prime is 113993441. The reversal of 113993439 is 934399311.

It is not a de Polignac number, because 113993439 - 2⁴ = 113993423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113993439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113993039) 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, 957 + ... + 15129.

It is an arithmetic number, because the mean of its divisors is an integer number (10885632).

Almost surely, 2^113993439 is an apocalyptic number.

113993439 is a deficient number, since it is larger than the sum of its proper divisors (60176673).

113993439 is a wasteful number, since it uses less digits than its factorization.

113993439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14566.

The product of its digits is 78732, while the sum is 42.

The square root of 113993439 is about 10676.7710006350. The cubic root of 113993439 is about 484.8714563510.

The spelling of 113993439 in words is "one hundred thirteen million, nine hundred ninety-three thousand, four hundred thirty-nine".