99436261 has 2 divisors, whose sum is σ = 99436262. Its totient is φ = 99436260.

The previous prime is 99436237. The next prime is 99436307. The reversal of 99436261 is 16263499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88247236 + 11189025 = 9394^2 + 3345^2 .

It is a cyclic number.

It is not a de Polignac number, because 99436261 - 2¹⁹ = 98911973 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 (99436201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49718130 + 49718131.

It is an arithmetic number, because the mean of its divisors is an integer number (49718131).

Almost surely, 2^99436261 is an apocalyptic number.

It is an amenable number.

99436261 is a deficient number, since it is larger than the sum of its proper divisors (1).

99436261 is an equidigital number, since it uses as much as digits as its factorization.

99436261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 99436261 is about 9971.7732124232. The cubic root of 99436261 is about 463.2850243211.

The spelling of 99436261 in words is "ninety-nine million, four hundred thirty-six thousand, two hundred sixty-one".