7930989 has 12 divisors (see below), whose sum is σ = 12497472. Its totient is φ = 4806600.

The previous prime is 7930943. The next prime is 7931003. The reversal of 7930989 is 9890397.

It is a happy number.

It is not a de Polignac number, because 7930989 - 2⁷ = 7930861 is a prime.

7930989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7930289) 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 11 ways as a sum of consecutive naturals, for example, 39957 + ... + 40154.

It is an arithmetic number, because the mean of its divisors is an integer number (1041456).

Almost surely, 2^7930989 is an apocalyptic number.

It is an amenable number.

7930989 is a deficient number, since it is larger than the sum of its proper divisors (4566483).

7930989 is a wasteful number, since it uses less digits than its factorization.

7930989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80128 (or 80125 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 7930989 is about 2816.2011646898. The cubic root of 7930989 is about 199.4232467103.

The spelling of 7930989 in words is "seven million, nine hundred thirty thousand, nine hundred eighty-nine".