91267943 has 12 divisors (see below), whose sum is σ = 99825768. Its totient is φ = 83397600.

The previous prime is 91267919. The next prime is 91267997. The reversal of 91267943 is 34976219.

It is not a de Polignac number, because 91267943 - 2²² = 87073639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91267943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91267903) 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, 14396 + ... + 19742.

It is an arithmetic number, because the mean of its divisors is an integer number (8318814).

Almost surely, 2^91267943 is an apocalyptic number.

91267943 is a deficient number, since it is larger than the sum of its proper divisors (8557825).

91267943 is a wasteful number, since it uses less digits than its factorization.

91267943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474 (or 5461 counting only the distinct ones).

The product of its digits is 81648, while the sum is 41.

The square root of 91267943 is about 9553.4257206512. The cubic root of 91267943 is about 450.2351741937.

The spelling of 91267943 in words is "ninety-one million, two hundred sixty-seven thousand, nine hundred forty-three".