91610741 has 2 divisors, whose sum is σ = 91610742. Its totient is φ = 91610740.

The previous prime is 91610719. The next prime is 91610749. The reversal of 91610741 is 14701619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78251716 + 13359025 = 8846^2 + 3655^2 .

It is a cyclic number.

It is not a de Polignac number, because 91610741 - 2¹⁴ = 91594357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91610749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45805370 + 45805371.

It is an arithmetic number, because the mean of its divisors is an integer number (45805371).

Almost surely, 2^91610741 is an apocalyptic number.

It is an amenable number.

91610741 is a deficient number, since it is larger than the sum of its proper divisors (1).

91610741 is an equidigital number, since it uses as much as digits as its factorization.

91610741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 91610741 is about 9571.3500092725. The cubic root of 91610741 is about 450.7981571482.

The spelling of 91610741 in words is "ninety-one million, six hundred ten thousand, seven hundred forty-one".