92221609 has 2 divisors, whose sum is σ = 92221610. Its totient is φ = 92221608.

The previous prime is 92221607. The next prime is 92221631. The reversal of 92221609 is 90612229.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58905625 + 33315984 = 7675^2 + 5772^2 .

It is a cyclic number.

It is not a de Polignac number, because 92221609 - 2¹ = 92221607 is a prime.

Together with 92221607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (92221601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46110804 + 46110805.

It is an arithmetic number, because the mean of its divisors is an integer number (46110805).

Almost surely, 2^92221609 is an apocalyptic number.

It is an amenable number.

92221609 is a deficient number, since it is larger than the sum of its proper divisors (1).

92221609 is an equidigital number, since it uses as much as digits as its factorization.

92221609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 92221609 is about 9603.2082659911. The cubic root of 92221609 is about 451.7979247213.

The spelling of 92221609 in words is "ninety-two million, two hundred twenty-one thousand, six hundred nine".