91406 has 8 divisors (see below), whose sum is σ = 156720. Its totient is φ = 39168.

The previous prime is 91397. The next prime is 91411. The reversal of 91406 is 60419.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 91406.

It is an unprimeable number.

91406 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 in 3 ways as a sum of consecutive naturals, for example, 3251 + ... + 3278.

It is an arithmetic number, because the mean of its divisors is an integer number (19590).

2⁹¹⁴⁰⁶ is an apocalyptic number.

91406 is a deficient number, since it is larger than the sum of its proper divisors (65314).

91406 is a wasteful number, since it uses less digits than its factorization.

91406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 91406 is about 302.3342521118. The cubic root of 91406 is about 45.0462076800.

The spelling of 91406 in words is "ninety-one thousand, four hundred six".