91343667 has 4 divisors (see below), whose sum is σ = 121791560. Its totient is φ = 60895776.

The previous prime is 91343647. The next prime is 91343687. The reversal of 91343667 is 76634319.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (91343647) and next prime (91343687).

It is not a de Polignac number, because 91343667 - 2¹⁴ = 91327283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91343617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15223942 + ... + 15223947.

It is an arithmetic number, because the mean of its divisors is an integer number (30447890).

Almost surely, 2^91343667 is an apocalyptic number.

91343667 is a deficient number, since it is larger than the sum of its proper divisors (30447893).

91343667 is a wasteful number, since it uses less digits than its factorization.

91343667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30447892.

The product of its digits is 81648, while the sum is 39.

The square root of 91343667 is about 9557.3880846181. The cubic root of 91343667 is about 450.3596581491.

The spelling of 91343667 in words is "ninety-one million, three hundred forty-three thousand, six hundred sixty-seven".