7920969 has 16 divisors (see below), whose sum is σ = 12115968. Its totient is φ = 4509072.

The previous prime is 7920959. The next prime is 7921003. The reversal of 7920969 is 9690297.

It is not a de Polignac number, because 7920969 - 2⁸ = 7920713 is a prime.

It is a super-2 number, since 2×7920969² = 125483499797922, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7920969.

It is not an unprimeable number, because it can be changed into a prime (7920949) 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, 6744 + ... + 7830.

It is an arithmetic number, because the mean of its divisors is an integer number (757248).

Almost surely, 2^7920969 is an apocalyptic number.

It is an amenable number.

7920969 is a deficient number, since it is larger than the sum of its proper divisors (4194999).

7920969 is a wasteful number, since it uses less digits than its factorization.

7920969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 7920969 is about 2814.4216102070. The cubic root of 7920969 is about 199.3392276370.

The spelling of 7920969 in words is "seven million, nine hundred twenty thousand, nine hundred sixty-nine".