7923491 has 2 divisors, whose sum is σ = 7923492. Its totient is φ = 7923490.

The previous prime is 7923469. The next prime is 7923497. The reversal of 7923491 is 1943297.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7923491 - 2⁶ = 7923427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7923497) 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, 3961745 + 3961746.

It is an arithmetic number, because the mean of its divisors is an integer number (3961746).

Almost surely, 2^7923491 is an apocalyptic number.

7923491 is a deficient number, since it is larger than the sum of its proper divisors (1).

7923491 is an equidigital number, since it uses as much as digits as its factorization.

7923491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 7923491 is about 2814.8696239791. The cubic root of 7923491 is about 199.3603816223.

The spelling of 7923491 in words is "seven million, nine hundred twenty-three thousand, four hundred ninety-one".