91654523 has 2 divisors, whose sum is σ = 91654524. Its totient is φ = 91654522.

The previous prime is 91654501. The next prime is 91654547. The reversal of 91654523 is 32545619.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91654523 - 2⁸ = 91654267 is a prime.

It is not a weakly prime, because it can be changed into another prime (91654583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45827261 + 45827262.

It is an arithmetic number, because the mean of its divisors is an integer number (45827262).

Almost surely, 2^91654523 is an apocalyptic number.

91654523 is a deficient number, since it is larger than the sum of its proper divisors (1).

91654523 is an equidigital number, since it uses as much as digits as its factorization.

91654523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 35.

The square root of 91654523 is about 9573.6368742500. The cubic root of 91654523 is about 450.8699598697.

The spelling of 91654523 in words is "ninety-one million, six hundred fifty-four thousand, five hundred twenty-three".