91613059 has 8 divisors (see below), whose sum is σ = 95404320. Its totient is φ = 87864000.

The previous prime is 91613021. The next prime is 91613063. The reversal of 91613059 is 95031619.

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

It is a cyclic number.

It is not a de Polignac number, because 91613059 - 2⁷ = 91612931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91613089) 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, 6082 + ... + 14839.

It is an arithmetic number, because the mean of its divisors is an integer number (11925540).

Almost surely, 2^91613059 is an apocalyptic number.

91613059 is a deficient number, since it is larger than the sum of its proper divisors (3791261).

91613059 is a wasteful number, since it uses less digits than its factorization.

91613059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21101.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 91613059 is about 9571.4710990526. The cubic root of 91613059 is about 450.8019592544.

The spelling of 91613059 in words is "ninety-one million, six hundred thirteen thousand, fifty-nine".