11621171 has 8 divisors (see below), whose sum is σ = 12015600. Its totient is φ = 11233440.

The previous prime is 11621167. The next prime is 11621177. The reversal of 11621171 is 17112611.

It is a happy number.

11621171 is digitally balanced in base 2, because in such base 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 a cyclic number.

It is not a de Polignac number, because 11621171 - 2² = 11621167 is a prime.

It is a super-2 number, since 2×11621171² = 270103230822482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621177) 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, 1985 + ... + 5213.

It is an arithmetic number, because the mean of its divisors is an integer number (1501950).

Almost surely, 2^11621171 is an apocalyptic number.

11621171 is a deficient number, since it is larger than the sum of its proper divisors (394429).

11621171 is an equidigital number, since it uses as much as digits as its factorization.

11621171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349.

The product of its digits is 84, while the sum is 20.

The square root of 11621171 is about 3408.9838661983. The cubic root of 11621171 is about 226.5078705639.

Adding to 11621171 its reverse (17112611), we get a palindrome (28733782).

The spelling of 11621171 in words is "eleven million, six hundred twenty-one thousand, one hundred seventy-one".