9121617 has 12 divisors (see below), whose sum is σ = 13335504. Its totient is φ = 6007320.

The previous prime is 9121601. The next prime is 9121621. The reversal of 9121617 is 7161219.

9121617 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9121617 - 2⁴ = 9121601 is a prime.

9121617 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9121627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5359 + ... + 6852.

It is an arithmetic number, because the mean of its divisors is an integer number (1111292).

Almost surely, 2^9121617 is an apocalyptic number.

It is an amenable number.

9121617 is a deficient number, since it is larger than the sum of its proper divisors (4213887).

9121617 is a wasteful number, since it uses less digits than its factorization.

9121617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12300 (or 12297 counting only the distinct ones).

The product of its digits is 756, while the sum is 27.

The square root of 9121617 is about 3020.2014833451. The cubic root of 9121617 is about 208.9411325093.

The spelling of 9121617 in words is "nine million, one hundred twenty-one thousand, six hundred seventeen".