92897281 has 2 divisors, whose sum is σ = 92897282. Its totient is φ = 92897280.

The previous prime is 92897249. The next prime is 92897291. The reversal of 92897281 is 18279829.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73616400 + 19280881 = 8580^2 + 4391^2 .

It is a cyclic number.

It is not a de Polignac number, because 92897281 - 2⁵ = 92897249 is a prime.

It is a super-2 number, since 2×92897281² = 17259809634385922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (92897201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46448640 + 46448641.

It is an arithmetic number, because the mean of its divisors is an integer number (46448641).

It is a Proth number, since it is equal to 2835 ⋅ 2¹⁵ + 1 and 2835 < 2¹⁵.

Almost surely, 2^92897281 is an apocalyptic number.

It is an amenable number.

92897281 is a deficient number, since it is larger than the sum of its proper divisors (1).

92897281 is an equidigital number, since it uses as much as digits as its factorization.

92897281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 92897281 is about 9638.3235575488. The cubic root of 92897281 is about 452.8986237355.

The spelling of 92897281 in words is "ninety-two million, eight hundred ninety-seven thousand, two hundred eighty-one".