91606 has 8 divisors (see below), whose sum is σ = 138744. Its totient is φ = 45360.

The previous prime is 91591. The next prime is 91621. The reversal of 91606 is 60619.

It is an interprime number because it is at equal distance from previous prime (91591) and next prime (91621).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186 + ... + 466.

It is an arithmetic number, because the mean of its divisors is an integer number (17343).

2⁹¹⁶⁰⁶ is an apocalyptic number.

91606 is a deficient number, since it is larger than the sum of its proper divisors (47138).

91606 is a wasteful number, since it uses less digits than its factorization.

91606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 91606 is about 302.6648311251. The cubic root of 91606 is about 45.0790380509.

The spelling of 91606 in words is "ninety-one thousand, six hundred six".