99683261 has 2 divisors, whose sum is σ = 99683262. Its totient is φ = 99683260.

The previous prime is 99683239. The next prime is 99683267. The reversal of 99683261 is 16238699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70728100 + 28955161 = 8410^2 + 5381^2 .

It is a cyclic number.

It is not a de Polignac number, because 99683261 - 2¹⁴ = 99666877 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99683267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49841630 + 49841631.

It is an arithmetic number, because the mean of its divisors is an integer number (49841631).

Almost surely, 2^99683261 is an apocalyptic number.

It is an amenable number.

99683261 is a deficient number, since it is larger than the sum of its proper divisors (1).

99683261 is an equidigital number, since it uses as much as digits as its factorization.

99683261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 99683261 is about 9984.1504896511. The cubic root of 99683261 is about 463.6683076461.

The spelling of 99683261 in words is "ninety-nine million, six hundred eighty-three thousand, two hundred sixty-one".