91474193 has 4 divisors (see below), whose sum is σ = 92329200. Its totient is φ = 90619188.

The previous prime is 91474181. The next prime is 91474213. The reversal of 91474193 is 39147419.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91474193 - 2¹² = 91470097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91474393) 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, 427343 + ... + 427556.

It is an arithmetic number, because the mean of its divisors is an integer number (23082300).

Almost surely, 2^91474193 is an apocalyptic number.

It is an amenable number.

91474193 is a deficient number, since it is larger than the sum of its proper divisors (855007).

91474193 is a wasteful number, since it uses less digits than its factorization.

91474193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855006.

The product of its digits is 27216, while the sum is 38.

The square root of 91474193 is about 9564.2141862257. The cubic root of 91474193 is about 450.5740706317.

The spelling of 91474193 in words is "ninety-one million, four hundred seventy-four thousand, one hundred ninety-three".