91367243 has 8 divisors (see below), whose sum is σ = 99828720. Its totient is φ = 82931680.

The previous prime is 91367239. The next prime is 91367251. The reversal of 91367243 is 34276319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91367243 - 2² = 91367239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91367233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1313 + ... + 13581.

It is an arithmetic number, because the mean of its divisors is an integer number (12478590).

Almost surely, 2^91367243 is an apocalyptic number.

91367243 is a deficient number, since it is larger than the sum of its proper divisors (8461477).

91367243 is a wasteful number, since it uses less digits than its factorization.

91367243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12957.

The product of its digits is 27216, while the sum is 35.

The square root of 91367243 is about 9558.6213964149. The cubic root of 91367243 is about 450.3984010866.

The spelling of 91367243 in words is "ninety-one million, three hundred sixty-seven thousand, two hundred forty-three".