11641917 has 8 divisors (see below), whose sum is σ = 17740096. Its totient is φ = 6652512.

The previous prime is 11641901. The next prime is 11641919. The reversal of 11641917 is 71914611.

11641917 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 a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11641917 - 2⁴ = 11641901 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 (11641919) 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, 277168 + ... + 277209.

It is an arithmetic number, because the mean of its divisors is an integer number (2217512).

Almost surely, 2^11641917 is an apocalyptic number.

It is an amenable number.

11641917 is a deficient number, since it is larger than the sum of its proper divisors (6098179).

11641917 is an equidigital number, since it uses as much as digits as its factorization.

11641917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554387.

The product of its digits is 1512, while the sum is 30.

The square root of 11641917 is about 3412.0253516057. The cubic root of 11641917 is about 226.6425769766.

It can be divided in two parts, 1164 and 1917, that added together give a triangular number (3081 = T₇₈).

The spelling of 11641917 in words is "eleven million, six hundred forty-one thousand, nine hundred seventeen".