92049721 has 2 divisors, whose sum is σ = 92049722. Its totient is φ = 92049720.

The previous prime is 92049719. The next prime is 92049743. The reversal of 92049721 is 12794029.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66243321 + 25806400 = 8139^2 + 5080^2 .

It is a cyclic number.

It is not a de Polignac number, because 92049721 - 2¹ = 92049719 is a prime.

It is a super-2 number, since 2×92049721² = 16946302272355682, which contains 22 as substring.

Together with 92049719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (92049701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46024860 + 46024861.

It is an arithmetic number, because the mean of its divisors is an integer number (46024861).

Almost surely, 2^92049721 is an apocalyptic number.

It is an amenable number.

92049721 is a deficient number, since it is larger than the sum of its proper divisors (1).

92049721 is an equidigital number, since it uses as much as digits as its factorization.

92049721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 92049721 is about 9594.2545828220. The cubic root of 92049721 is about 451.5170543961.

The spelling of 92049721 in words is "ninety-two million, forty-nine thousand, seven hundred twenty-one".