91077 has 8 divisors (see below), whose sum is σ = 138816. Its totient is φ = 52032.

The previous prime is 91033. The next prime is 91079. The reversal of 91077 is 77019.

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

It is not a de Polignac number, because 91077 - 2⁸ = 90821 is a prime.

It is a congruent number.

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, 2148 + ... + 2189.

It is an arithmetic number, because the mean of its divisors is an integer number (17352).

2⁹¹⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

91077 is a deficient number, since it is larger than the sum of its proper divisors (47739).

91077 is a wasteful number, since it uses less digits than its factorization.

91077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4347.

The product of its (nonzero) digits is 441, while the sum is 24.

The square root of 91077 is about 301.7896618508. The cubic root of 91077 is about 44.9920973777.

The spelling of 91077 in words is "ninety-one thousand, seventy-seven".