92417821 has 2 divisors, whose sum is σ = 92417822. Its totient is φ = 92417820.

The previous prime is 92417803. The next prime is 92417861. The reversal of 92417821 is 12871429.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87516025 + 4901796 = 9355^2 + 2214^2 .

It is an emirp because it is prime and its reverse (12871429) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 92417821 - 2²¹ = 90320669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (92417861) 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, 46208910 + 46208911.

It is an arithmetic number, because the mean of its divisors is an integer number (46208911).

Almost surely, 2^92417821 is an apocalyptic number.

It is an amenable number.

92417821 is a deficient number, since it is larger than the sum of its proper divisors (1).

92417821 is an equidigital number, since it uses as much as digits as its factorization.

92417821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 92417821 is about 9613.4187987417. The cubic root of 92417821 is about 452.1181149669.

The spelling of 92417821 in words is "ninety-two million, four hundred seventeen thousand, eight hundred twenty-one".