23170493 has 2 divisors, whose sum is σ = 23170494. Its totient is φ = 23170492.

The previous prime is 23170471. The next prime is 23170501. The reversal of 23170493 is 39407132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22486564 + 683929 = 4742^2 + 827^2 .

It is a cyclic number.

It is not a de Polignac number, because 23170493 - 2⁶ = 23170429 is a prime.

It is equal to p_1458335 and since 23170493 and 1458335 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23170403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11585246 + 11585247.

It is an arithmetic number, because the mean of its divisors is an integer number (11585247).

Almost surely, 2^23170493 is an apocalyptic number.

It is an amenable number.

23170493 is a deficient number, since it is larger than the sum of its proper divisors (1).

23170493 is an equidigital number, since it uses as much as digits as its factorization.

23170493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 23170493 is about 4813.5738282486. The cubic root of 23170493 is about 285.0876636041.

The spelling of 23170493 in words is "twenty-three million, one hundred seventy thousand, four hundred ninety-three".