91474 has 4 divisors (see below), whose sum is σ = 137214. Its totient is φ = 45736.

The previous prime is 91463. The next prime is 91493. The reversal of 91474 is 47419.

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

It can be written as a sum of positive squares in only one way, i.e., 85849 + 5625 = 293^2 + 75^2 .

It is an unprimeable number.

91474 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22867 + ... + 22870.

2⁹¹⁴⁷⁴ is an apocalyptic number.

91474 is a deficient number, since it is larger than the sum of its proper divisors (45740).

91474 is a wasteful number, since it uses less digits than its factorization.

91474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45739.

The product of its digits is 1008, while the sum is 25.

The square root of 91474 is about 302.4466895173. The cubic root of 91474 is about 45.0573753745.

It can be divided in two parts, 91 and 474, that multiplied together give a palindrome (43134).

The spelling of 91474 in words is "ninety-one thousand, four hundred seventy-four".