91366083 has 16 divisors (see below), whose sum is σ = 139724800. Its totient is φ = 58945320.

The previous prime is 91366063. The next prime is 91366087. The reversal of 91366083 is 38066319.

It is a happy number.

It is not a de Polignac number, because 91366083 - 2¹² = 91361987 is a prime.

It is a super-2 number, since 2×91366083² = 16695522245525778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91366087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53743 + ... + 55416.

It is an arithmetic number, because the mean of its divisors is an integer number (8732800).

Almost surely, 2^91366083 is an apocalyptic number.

91366083 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

91366083 is a deficient number, since it is larger than the sum of its proper divisors (48358717).

91366083 is a wasteful number, since it uses less digits than its factorization.

91366083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109199 (or 109193 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 91366083 is about 9558.5607180161. The cubic root of 91366083 is about 450.3964949901.

The spelling of 91366083 in words is "ninety-one million, three hundred sixty-six thousand, eighty-three".