92645221 has 2 divisors, whose sum is σ = 92645222. Its totient is φ = 92645220.

The previous prime is 92645171. The next prime is 92645237. The reversal of 92645221 is 12254629.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92428996 + 216225 = 9614^2 + 465^2 .

It is an emirp because it is prime and its reverse (12254629) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 92645221 - 2¹⁵ = 92612453 is a prime.

It is equal to p_5361385 and since 92645221 and 5361385 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 (92645251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46322610 + 46322611.

It is an arithmetic number, because the mean of its divisors is an integer number (46322611).

Almost surely, 2^92645221 is an apocalyptic number.

It is an amenable number.

92645221 is a deficient number, since it is larger than the sum of its proper divisors (1).

92645221 is an equidigital number, since it uses as much as digits as its factorization.

92645221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 92645221 is about 9625.2387502856. The cubic root of 92645221 is about 452.4886331506.

The spelling of 92645221 in words is "ninety-two million, six hundred forty-five thousand, two hundred twenty-one".