11651617 has 4 divisors (see below), whose sum is σ = 12264880. Its totient is φ = 11038356.

The previous prime is 11651611. The next prime is 11651621. The reversal of 11651617 is 71615611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11651617 - 2²³ = 3263009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11651611) 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, 306603 + ... + 306640.

It is an arithmetic number, because the mean of its divisors is an integer number (3066220).

Almost surely, 2^11651617 is an apocalyptic number.

It is an amenable number.

11651617 is a deficient number, since it is larger than the sum of its proper divisors (613263).

11651617 is an equidigital number, since it uses as much as digits as its factorization.

11651617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613262.

The product of its digits is 1260, while the sum is 28.

The square root of 11651617 is about 3413.4464987751. The cubic root of 11651617 is about 226.7055054074.

The spelling of 11651617 in words is "eleven million, six hundred fifty-one thousand, six hundred seventeen".