7920369 has 16 divisors (see below), whose sum is σ = 11793600. Its totient is φ = 5253408.

The previous prime is 7920361. The next prime is 7920371. The reversal of 7920369 is 9630297.

It is not a de Polignac number, because 7920369 - 2³ = 7920361 is a prime.

It is a super-2 number, since 2×7920369² = 125464490192322, which contains 22 as substring.

7920369 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7920361) 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, 5662 + ... + 6920.

It is an arithmetic number, because the mean of its divisors is an integer number (737100).

Almost surely, 2^7920369 is an apocalyptic number.

It is an amenable number.

7920369 is a deficient number, since it is larger than the sum of its proper divisors (3873231).

7920369 is a wasteful number, since it uses less digits than its factorization.

7920369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 7920369 is about 2814.3150143507. The cubic root of 7920369 is about 199.3341943068.

The spelling of 7920369 in words is "seven million, nine hundred twenty thousand, three hundred sixty-nine".