91658363 has 2 divisors, whose sum is σ = 91658364. Its totient is φ = 91658362.

The previous prime is 91658297. The next prime is 91658377. The reversal of 91658363 is 36385619.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91658363 - 2¹⁰ = 91657339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91658363.

It is not a weakly prime, because it can be changed into another prime (91658383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45829181 + 45829182.

It is an arithmetic number, because the mean of its divisors is an integer number (45829182).

Almost surely, 2^91658363 is an apocalyptic number.

91658363 is a deficient number, since it is larger than the sum of its proper divisors (1).

91658363 is an equidigital number, since it uses as much as digits as its factorization.

91658363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 91658363 is about 9573.8374228937. The cubic root of 91658363 is about 450.8762564001.

The spelling of 91658363 in words is "ninety-one million, six hundred fifty-eight thousand, three hundred sixty-three".