92942821 has 2 divisors, whose sum is σ = 92942822. Its totient is φ = 92942820.

The previous prime is 92942809. The next prime is 92942873. The reversal of 92942821 is 12824929.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72012196 + 20930625 = 8486^2 + 4575^2 .

It is a cyclic number.

It is not a de Polignac number, because 92942821 - 2¹⁵ = 92910053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (92942881) 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, 46471410 + 46471411.

It is an arithmetic number, because the mean of its divisors is an integer number (46471411).

Almost surely, 2^92942821 is an apocalyptic number.

It is an amenable number.

92942821 is a deficient number, since it is larger than the sum of its proper divisors (1).

92942821 is an equidigital number, since it uses as much as digits as its factorization.

92942821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 92942821 is about 9640.6857121265. The cubic root of 92942821 is about 452.9726181293.

The spelling of 92942821 in words is "ninety-two million, nine hundred forty-two thousand, eight hundred twenty-one".