92643381 has 12 divisors (see below), whose sum is σ = 134132908. Its totient is φ = 61617024.

The previous prime is 92643367. The next prime is 92643391. The reversal of 92643381 is 18334629.

92643381 is a `hidden beast` number, since 9 + 2 + 643 + 3 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15800625 + 76842756 = 3975^2 + 8766^2 .

It is not a de Polignac number, because 92643381 - 2⁵ = 92643349 is a prime.

It is a super-2 number, since 2×92643381² = 17165592086222322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92643391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7990 + ... + 15783.

Almost surely, 2^92643381 is an apocalyptic number.

It is an amenable number.

92643381 is a deficient number, since it is larger than the sum of its proper divisors (41489527).

92643381 is a wasteful number, since it uses less digits than its factorization.

92643381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24212 (or 24209 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 92643381 is about 9625.1431677664. The cubic root of 92643381 is about 452.4856375487.

The spelling of 92643381 in words is "ninety-two million, six hundred forty-three thousand, three hundred eighty-one".