99268681 has 2 divisors, whose sum is σ = 99268682. Its totient is φ = 99268680.

The previous prime is 99268679. The next prime is 99268691. The reversal of 99268681 is 18686299.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99201600 + 67081 = 9960^2 + 259^2 .

It is a cyclic number.

It is not a de Polignac number, because 99268681 - 2¹ = 99268679 is a prime.

It is a super-2 number, since 2×99268681² = 19708542054959522, which contains 22 as substring.

Together with 99268679, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99268691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49634340 + 49634341.

It is an arithmetic number, because the mean of its divisors is an integer number (49634341).

Almost surely, 2^99268681 is an apocalyptic number.

It is an amenable number.

99268681 is a deficient number, since it is larger than the sum of its proper divisors (1).

99268681 is an equidigital number, since it uses as much as digits as its factorization.

99268681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 49.

The square root of 99268681 is about 9963.3669509860. The cubic root of 99268681 is about 463.0246197881.

The spelling of 99268681 in words is "ninety-nine million, two hundred sixty-eight thousand, six hundred eighty-one".