92404421 has 2 divisors, whose sum is σ = 92404422. Its totient is φ = 92404420.

The previous prime is 92404393. The next prime is 92404439. The reversal of 92404421 is 12440429.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52852900 + 39551521 = 7270^2 + 6289^2 .

It is an emirp because it is prime and its reverse (12440429) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 92404421 - 2⁶ = 92404357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (92404471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46202210 + 46202211.

It is an arithmetic number, because the mean of its divisors is an integer number (46202211).

Almost surely, 2^92404421 is an apocalyptic number.

It is an amenable number.

92404421 is a deficient number, since it is larger than the sum of its proper divisors (1).

92404421 is an equidigital number, since it uses as much as digits as its factorization.

92404421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 92404421 is about 9612.7218309904. The cubic root of 92404421 is about 452.0962624876.

The spelling of 92404421 in words is "ninety-two million, four hundred four thousand, four hundred twenty-one".