91841311 has 2 divisors, whose sum is σ = 91841312. Its totient is φ = 91841310.

The previous prime is 91841287. The next prime is 91841317. The reversal of 91841311 is 11314819.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91841311 - 2⁵ = 91841279 is a prime.

It is equal to p_5317561 and since 91841311 and 5317561 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91841311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91841317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45920655 + 45920656.

It is an arithmetic number, because the mean of its divisors is an integer number (45920656).

Almost surely, 2^91841311 is an apocalyptic number.

91841311 is a deficient number, since it is larger than the sum of its proper divisors (1).

91841311 is an equidigital number, since it uses as much as digits as its factorization.

91841311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 28.

The square root of 91841311 is about 9583.3872404281. The cubic root of 91841311 is about 451.1760366084.

The spelling of 91841311 in words is "ninety-one million, eight hundred forty-one thousand, three hundred eleven".