89403839 has 16 divisors (see below), whose sum is σ = 107205120. Its totient is φ = 72935520.

The previous prime is 89403791. The next prime is 89403841. The reversal of 89403839 is 93830498.

It is a de Polignac number, because none of the positive numbers 2^k-89403839 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 89403839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89403859) 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, 11312 + ... + 17514.

It is an arithmetic number, because the mean of its divisors is an integer number (6700320).

Almost surely, 2^89403839 is an apocalyptic number.

89403839 is a deficient number, since it is larger than the sum of its proper divisors (17801281).

89403839 is a wasteful number, since it uses less digits than its factorization.

89403839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6310.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 89403839 is about 9455.3603315791. The cubic root of 89403839 is about 447.1487859416.

The spelling of 89403839 in words is "eighty-nine million, four hundred three thousand, eight hundred thirty-nine".