7923397 has 2 divisors, whose sum is σ = 7923398. Its totient is φ = 7923396.

The previous prime is 7923379. The next prime is 7923427. The reversal of 7923397 is 7933297.

Together with previous prime (7923379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7667361 + 256036 = 2769^2 + 506^2 .

It is a cyclic number.

It is not a de Polignac number, because 7923397 - 2⁷ = 7923269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7923337) 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, 3961698 + 3961699.

It is an arithmetic number, because the mean of its divisors is an integer number (3961699).

Almost surely, 2^7923397 is an apocalyptic number.

It is an amenable number.

7923397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7923397 is an equidigital number, since it uses as much as digits as its factorization.

7923397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71442, while the sum is 40.

The square root of 7923397 is about 2814.8529268862. The cubic root of 7923397 is about 199.3595932513.

The spelling of 7923397 in words is "seven million, nine hundred twenty-three thousand, three hundred ninety-seven".