92436821 has 2 divisors, whose sum is σ = 92436822. Its totient is φ = 92436820.

The previous prime is 92436787. The next prime is 92436887. The reversal of 92436821 is 12863429.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91202500 + 1234321 = 9550^2 + 1111^2 .

It is an emirp because it is prime and its reverse (12863429) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 92436821 - 2¹⁰ = 92435797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (92436221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46218410 + 46218411.

It is an arithmetic number, because the mean of its divisors is an integer number (46218411).

Almost surely, 2^92436821 is an apocalyptic number.

It is an amenable number.

92436821 is a deficient number, since it is larger than the sum of its proper divisors (1).

92436821 is an equidigital number, since it uses as much as digits as its factorization.

92436821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 92436821 is about 9614.4069499892. The cubic root of 92436821 is about 452.1490962051.

The spelling of 92436821 in words is "ninety-two million, four hundred thirty-six thousand, eight hundred twenty-one".