91523361 has 16 divisors (see below), whose sum is σ = 128675840. Its totient is φ = 57704400.

The previous prime is 91523351. The next prime is 91523389. The reversal of 91523361 is 16332519.

It is not a de Polignac number, because 91523361 - 2⁵ = 91523329 is a prime.

It is a super-3 number, since 3×91523361³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91523351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45936 + ... + 47886.

It is an arithmetic number, because the mean of its divisors is an integer number (8042240).

Almost surely, 2^91523361 is an apocalyptic number.

It is an amenable number.

91523361 is a deficient number, since it is larger than the sum of its proper divisors (37152479).

91523361 is a wasteful number, since it uses less digits than its factorization.

91523361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796.

The product of its digits is 4860, while the sum is 30.

The square root of 91523361 is about 9566.7842559556. The cubic root of 91523361 is about 450.6547850463.

The spelling of 91523361 in words is "ninety-one million, five hundred twenty-three thousand, three hundred sixty-one".