7972989 has 16 divisors (see below), whose sum is σ = 11282880. Its totient is φ = 4993920.

The previous prime is 7972969. The next prime is 7973047. The reversal of 7972989 is 9892797.

It is a happy number.

It is not a de Polignac number, because 7972989 - 2⁵ = 7972957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972969) 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, 7299 + ... + 8319.

It is an arithmetic number, because the mean of its divisors is an integer number (705180).

Almost surely, 2^7972989 is an apocalyptic number.

It is an amenable number.

7972989 is a deficient number, since it is larger than the sum of its proper divisors (3309891).

7972989 is a wasteful number, since it uses less digits than its factorization.

7972989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180.

The product of its digits is 571536, while the sum is 51.

The square root of 7972989 is about 2823.6481721348. The cubic root of 7972989 is about 199.7746545258.

The spelling of 7972989 in words is "seven million, nine hundred seventy-two thousand, nine hundred eighty-nine".