7990423 has 16 divisors (see below), whose sum is σ = 9446400. Its totient is φ = 6617376.

The previous prime is 7990379. The next prime is 7990427. The reversal of 7990423 is 3240997.

7990423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7990423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7990427) 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, 48940 + ... + 49102.

It is an arithmetic number, because the mean of its divisors is an integer number (590400).

Almost surely, 2^7990423 is an apocalyptic number.

7990423 is a deficient number, since it is larger than the sum of its proper divisors (1455977).

7990423 is a wasteful number, since it uses less digits than its factorization.

7990423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 7990423 is about 2826.7336273515. The cubic root of 7990423 is about 199.9201597986.

It can be divided in two parts, 79 and 90423, that multiplied together give a palindrome (7143417).

The spelling of 7990423 in words is "seven million, nine hundred ninety thousand, four hundred twenty-three".