91074 has 16 divisors (see below), whose sum is σ = 186912. Its totient is φ = 29568.

The previous prime is 91033. The next prime is 91079. The reversal of 91074 is 47019.

It is a self number, because there is not a number n which added to its sum of digits gives 91074.

It is not an unprimeable number, because it can be changed into a prime (91079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82 + ... + 434.

It is an arithmetic number, because the mean of its divisors is an integer number (11682).

2⁹¹⁰⁷⁴ is an apocalyptic number.

91074 is an abundant number, since it is smaller than the sum of its proper divisors (95838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93456).

91074 is a wasteful number, since it uses less digits than its factorization.

91074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 91074 is about 301.7846914607. The cubic root of 91074 is about 44.9916033716.

The spelling of 91074 in words is "ninety-one thousand, seventy-four".