91342886 has 4 divisors (see below), whose sum is σ = 137014332. Its totient is φ = 45671442.

The previous prime is 91342873. The next prime is 91342897. The reversal of 91342886 is 68824319.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22835720 + ... + 22835723.

It is an arithmetic number, because the mean of its divisors is an integer number (34253583).

Almost surely, 2^91342886 is an apocalyptic number.

91342886 is a deficient number, since it is larger than the sum of its proper divisors (45671446).

91342886 is a wasteful number, since it uses less digits than its factorization.

91342886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45671445.

The product of its digits is 82944, while the sum is 41.

The square root of 91342886 is about 9557.3472260874. The cubic root of 91342886 is about 450.3583746013.

The spelling of 91342886 in words is "ninety-one million, three hundred forty-two thousand, eight hundred eighty-six".