91366767 has 6 divisors (see below), whose sum is σ = 131974232. Its totient is φ = 60911172.

The previous prime is 91366757. The next prime is 91366783. The reversal of 91366767 is 76766319.

It is not a de Polignac number, because 91366767 - 2¹⁸ = 91104623 is a prime.

It is a super-2 number, since 2×91366767² = 16695772224064578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91366757) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5075923 + ... + 5075940.

Almost surely, 2^91366767 is an apocalyptic number.

91366767 is a deficient number, since it is larger than the sum of its proper divisors (40607465).

91366767 is a wasteful number, since it uses less digits than its factorization.

91366767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151869 (or 10151866 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 91366767 is about 9558.5964973944. The cubic root of 91366767 is about 450.3976189317.

The spelling of 91366767 in words is "ninety-one million, three hundred sixty-six thousand, seven hundred sixty-seven".