92649721 has 2 divisors, whose sum is σ = 92649722. Its totient is φ = 92649720.

The previous prime is 92649593. The next prime is 92649761. The reversal of 92649721 is 12794629.

It is an a-pointer prime, because the next prime (92649761) can be obtained adding 92649721 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76737600 + 15912121 = 8760^2 + 3989^2 .

It is a cyclic number.

It is not a de Polignac number, because 92649721 - 2⁷ = 92649593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (92649761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46324860 + 46324861.

It is an arithmetic number, because the mean of its divisors is an integer number (46324861).

Almost surely, 2^92649721 is an apocalyptic number.

It is an amenable number.

92649721 is a deficient number, since it is larger than the sum of its proper divisors (1).

92649721 is an equidigital number, since it uses as much as digits as its factorization.

92649721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 92649721 is about 9625.4725078824. The cubic root of 92649721 is about 452.4959591837.

The spelling of 92649721 in words is "ninety-two million, six hundred forty-nine thousand, seven hundred twenty-one".