8972439 has 24 divisors (see below), whose sum is σ = 14139648. Its totient is φ = 5045040.

The previous prime is 8972407. The next prime is 8972459. The reversal of 8972439 is 9342798.

It is not a de Polignac number, because 8972439 - 2⁵ = 8972407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8972439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8972459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9394 + ... + 10304.

It is an arithmetic number, because the mean of its divisors is an integer number (589152).

Almost surely, 2^8972439 is an apocalyptic number.

8972439 is a deficient number, since it is larger than the sum of its proper divisors (5167209).

8972439 is a wasteful number, since it uses less digits than its factorization.

8972439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 988 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 8972439 is about 2995.4029778980. The cubic root of 8972439 is about 207.7958348594.

The spelling of 8972439 in words is "eight million, nine hundred seventy-two thousand, four hundred thirty-nine".