91916941 has 2 divisors, whose sum is σ = 91916942. Its totient is φ = 91916940.

The previous prime is 91916911. The next prime is 91916963. The reversal of 91916941 is 14961919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91489225 + 427716 = 9565^2 + 654^2 .

It is a cyclic number.

It is not a de Polignac number, because 91916941 - 2¹⁵ = 91884173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91916894 and 91916903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91916911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45958470 + 45958471.

It is an arithmetic number, because the mean of its divisors is an integer number (45958471).

Almost surely, 2^91916941 is an apocalyptic number.

It is an amenable number.

91916941 is a deficient number, since it is larger than the sum of its proper divisors (1).

91916941 is an equidigital number, since it uses as much as digits as its factorization.

91916941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 40.

The square root of 91916941 is about 9587.3323192638. The cubic root of 91916941 is about 451.2998482901.

The spelling of 91916941 in words is "ninety-one million, nine hundred sixteen thousand, nine hundred forty-one".