7993157 has 2 divisors, whose sum is σ = 7993158. Its totient is φ = 7993156.

The previous prime is 7993127. The next prime is 7993169. The reversal of 7993157 is 7513997.

7993157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7761796 + 231361 = 2786^2 + 481^2 .

It is a cyclic number.

It is not a de Polignac number, because 7993157 - 2⁶ = 7993093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7993127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3996578 + 3996579.

It is an arithmetic number, because the mean of its divisors is an integer number (3996579).

Almost surely, 2^7993157 is an apocalyptic number.

It is an amenable number.

7993157 is a deficient number, since it is larger than the sum of its proper divisors (1).

7993157 is an equidigital number, since it uses as much as digits as its factorization.

7993157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59535, while the sum is 41.

The square root of 7993157 is about 2827.2171830264. The cubic root of 7993157 is about 199.9429587330.

The spelling of 7993157 in words is "seven million, nine hundred ninety-three thousand, one hundred fifty-seven".