7979623 has 2 divisors, whose sum is σ = 7979624. Its totient is φ = 7979622.

The previous prime is 7979599. The next prime is 7979663. The reversal of 7979623 is 3269797.

7979623 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7979623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7979623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7979663) 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 as a sum of consecutive naturals, namely, 3989811 + 3989812.

It is an arithmetic number, because the mean of its divisors is an integer number (3989812).

Almost surely, 2^7979623 is an apocalyptic number.

7979623 is a deficient number, since it is larger than the sum of its proper divisors (1).

7979623 is an equidigital number, since it uses as much as digits as its factorization.

7979623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 43.

The square root of 7979623 is about 2824.8226493003. The cubic root of 7979623 is about 199.8300472880.

The spelling of 7979623 in words is "seven million, nine hundred seventy-nine thousand, six hundred twenty-three".