99881711 has 2 divisors, whose sum is σ = 99881712. Its totient is φ = 99881710.

The previous prime is 99881687. The next prime is 99881729. The reversal of 99881711 is 11718899.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99881711 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 (99881011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49940855 + 49940856.

It is an arithmetic number, because the mean of its divisors is an integer number (49940856).

Almost surely, 2^99881711 is an apocalyptic number.

99881711 is a deficient number, since it is larger than the sum of its proper divisors (1).

99881711 is an equidigital number, since it uses as much as digits as its factorization.

99881711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 44.

The square root of 99881711 is about 9994.0837999288. The cubic root of 99881711 is about 463.9757948506.

The spelling of 99881711 in words is "ninety-nine million, eight hundred eighty-one thousand, seven hundred eleven".