972439 has 16 divisors (see below), whose sum is σ = 1146880. Its totient is φ = 816480.

The previous prime is 972431. The next prime is 972443. The reversal of 972439 is 934279.

It is a cyclic number.

It is not a de Polignac number, because 972439 - 2³ = 972431 is a prime.

It is a Duffinian number.

972439 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7594 + ... + 7720.

It is an arithmetic number, because the mean of its divisors is an integer number (71680).

2⁹⁷²⁴³⁹ is an apocalyptic number.

972439 is a deficient number, since it is larger than the sum of its proper divisors (174441).

972439 is a wasteful number, since it uses less digits than its factorization.

972439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190.

The product of its digits is 13608, while the sum is 34.

The square root of 972439 is about 986.1232174531. The cubic root of 972439 is about 99.0727282476.

The spelling of 972439 in words is "nine hundred seventy-two thousand, four hundred thirty-nine".