7990369 has 4 divisors (see below), whose sum is σ = 8013744. Its totient is φ = 7966996.

The previous prime is 7990363. The next prime is 7990373. The reversal of 7990369 is 9630997.

7990369 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9630997 = 23 ⋅418739.

It is a cyclic number.

It is not a de Polignac number, because 7990369 - 2⁵ = 7990337 is a prime.

It is a super-2 number, since 2×7990369² = 127691993512322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7990363) 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 3 ways as a sum of consecutive naturals, for example, 11167 + ... + 11860.

It is an arithmetic number, because the mean of its divisors is an integer number (2003436).

Almost surely, 2^7990369 is an apocalyptic number.

It is an amenable number.

7990369 is a deficient number, since it is larger than the sum of its proper divisors (23375).

7990369 is a wasteful number, since it uses less digits than its factorization.

7990369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23374.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 7990369 is about 2826.7240756749. The cubic root of 7990369 is about 199.9197094381.

The spelling of 7990369 in words is "seven million, nine hundred ninety thousand, three hundred sixty-nine".