91226769 has 12 divisors (see below), whose sum is σ = 125689968. Its totient is φ = 58854120.

The previous prime is 91226761. The next prime is 91226819. The reversal of 91226769 is 96762219.

It is not a de Polignac number, because 91226769 - 2³ = 91226761 is a prime.

It is a super-2 number, since 2×91226769² = 16644646764358722, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 91226769.

It is not an unprimeable number, because it can be changed into a prime (91226761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12939 + ... + 18704.

It is an arithmetic number, because the mean of its divisors is an integer number (10474164).

Almost surely, 2^91226769 is an apocalyptic number.

It is an amenable number.

91226769 is a deficient number, since it is larger than the sum of its proper divisors (34463199).

91226769 is a wasteful number, since it uses less digits than its factorization.

91226769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31708 (or 31677 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 91226769 is about 9551.2705437549. The cubic root of 91226769 is about 450.1674586635.

The spelling of 91226769 in words is "ninety-one million, two hundred twenty-six thousand, seven hundred sixty-nine".