91414691 has 4 divisors (see below), whose sum is σ = 94363584. Its totient is φ = 88465800.

The previous prime is 91414651. The next prime is 91414711. The reversal of 91414691 is 19641419.

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

It is a cyclic number.

It is not a de Polignac number, because 91414691 - 2¹⁰ = 91413667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91414621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1474400 + ... + 1474461.

It is an arithmetic number, because the mean of its divisors is an integer number (23590896).

Almost surely, 2^91414691 is an apocalyptic number.

91414691 is a deficient number, since it is larger than the sum of its proper divisors (2948893).

91414691 is a wasteful number, since it uses less digits than its factorization.

91414691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948892.

The product of its digits is 7776, while the sum is 35.

The square root of 91414691 is about 9561.1030221413. The cubic root of 91414691 is about 450.4763531856.

The spelling of 91414691 in words is "ninety-one million, four hundred fourteen thousand, six hundred ninety-one".