97091117 has 4 divisors (see below), whose sum is σ = 97422780. Its totient is φ = 96759456.

The previous prime is 97091053. The next prime is 97091149. The reversal of 97091117 is 71119079.

It is a happy number.

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 87067561 + 10023556 = 9331^2 + 3166^2 .

It is a cyclic number.

It is not a de Polignac number, because 97091117 - 2⁶ = 97091053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97091317) 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, 165392 + ... + 165977.

It is an arithmetic number, because the mean of its divisors is an integer number (24355695).

Almost surely, 2^97091117 is an apocalyptic number.

It is an amenable number.

97091117 is a deficient number, since it is larger than the sum of its proper divisors (331663).

97091117 is a wasteful number, since it uses less digits than its factorization.

97091117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331662.

The product of its (nonzero) digits is 3969, while the sum is 35.

The square root of 97091117 is about 9853.4824808288. The cubic root of 97091117 is about 459.6139120185.

The spelling of 97091117 in words is "ninety-seven million, ninety-one thousand, one hundred seventeen".