8493157 has 2 divisors, whose sum is σ = 8493158. Its totient is φ = 8493156.

The previous prime is 8493151. The next prime is 8493179. The reversal of 8493157 is 7513948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5503716 + 2989441 = 2346^2 + 1729^2 .

It is a cyclic number.

It is not a de Polignac number, because 8493157 - 2²³ = 104549 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8493151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4246578 + 4246579.

It is an arithmetic number, because the mean of its divisors is an integer number (4246579).

Almost surely, 2^8493157 is an apocalyptic number.

It is an amenable number.

8493157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8493157 is an equidigital number, since it uses as much as digits as its factorization.

8493157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 8493157 is about 2914.3021463122. The cubic root of 8493157 is about 204.0279741850.

The spelling of 8493157 in words is "eight million, four hundred ninety-three thousand, one hundred fifty-seven".