99982261 has 2 divisors, whose sum is σ = 99982262. Its totient is φ = 99982260.

The previous prime is 99982249. The next prime is 99982297. The reversal of 99982261 is 16228999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99500625 + 481636 = 9975^2 + 694^2 .

It is a cyclic number.

It is not a de Polignac number, because 99982261 - 2⁵ = 99982229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99982241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49991130 + 49991131.

It is an arithmetic number, because the mean of its divisors is an integer number (49991131).

Almost surely, 2^99982261 is an apocalyptic number.

It is an amenable number.

99982261 is a deficient number, since it is larger than the sum of its proper divisors (1).

99982261 is an equidigital number, since it uses as much as digits as its factorization.

99982261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 46.

The square root of 99982261 is about 9999.1130106625. The cubic root of 99982261 is about 464.1314360235.

The spelling of 99982261 in words is "ninety-nine million, nine hundred eighty-two thousand, two hundred sixty-one".