7904320369 has 16 divisors (see below), whose sum is σ = 9053051904. Its totient is φ = 6831118800.

The previous prime is 7904320343. The next prime is 7904320379. The reversal of 7904320369 is 9630234097.

It is not a de Polignac number, because 7904320369 - 2¹¹ = 7904318321 is a prime.

It is a super-2 number, since 2×7904320369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7904320339) 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, 54597 + ... + 137074.

It is an arithmetic number, because the mean of its divisors is an integer number (565815744).

Almost surely, 2^7904320369 is an apocalyptic number.

It is an amenable number.

7904320369 is a deficient number, since it is larger than the sum of its proper divisors (1148731535).

7904320369 is a wasteful number, since it uses less digits than its factorization.

7904320369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191868.

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 7904320369 is about 88906.2448256589. The cubic root of 7904320369 is about 1991.9946977361.

The spelling of 7904320369 in words is "seven billion, nine hundred four million, three hundred twenty thousand, three hundred sixty-nine".