99650281 has 2 divisors, whose sum is σ = 99650282. Its totient is φ = 99650280.

The previous prime is 99650273. The next prime is 99650303. The reversal of 99650281 is 18205699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88661056 + 10989225 = 9416^2 + 3315^2 .

It is a cyclic number.

It is not a de Polignac number, because 99650281 - 2³ = 99650273 is a prime.

It is a super-2 number, since 2×99650281² = 19860357006757922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (99650251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49825140 + 49825141.

It is an arithmetic number, because the mean of its divisors is an integer number (49825141).

Almost surely, 2^99650281 is an apocalyptic number.

It is an amenable number.

99650281 is a deficient number, since it is larger than the sum of its proper divisors (1).

99650281 is an equidigital number, since it uses as much as digits as its factorization.

99650281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 99650281 is about 9982.4987352867. The cubic root of 99650281 is about 463.6171674400.

The spelling of 99650281 in words is "ninety-nine million, six hundred fifty thousand, two hundred eighty-one".