91600097 has 4 divisors (see below), whose sum is σ = 96988356. Its totient is φ = 86211840.

The previous prime is 91600087. The next prime is 91600111. The reversal of 91600097 is 79000619.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46226401 + 45373696 = 6799^2 + 6736^2 .

It is a cyclic number.

It is not a de Polignac number, because 91600097 - 2⁴ = 91600081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91600057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2694104 + ... + 2694137.

It is an arithmetic number, because the mean of its divisors is an integer number (24247089).

Almost surely, 2^91600097 is an apocalyptic number.

It is an amenable number.

91600097 is a deficient number, since it is larger than the sum of its proper divisors (5388259).

91600097 is a wasteful number, since it uses less digits than its factorization.

91600097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388258.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 91600097 is about 9570.7939587058. The cubic root of 91600097 is about 450.7806974727.

The spelling of 91600097 in words is "ninety-one million, six hundred thousand, ninety-seven".