11472661 has 8 divisors (see below), whose sum is σ = 12159000. Its totient is φ = 10805760.

The previous prime is 11472649. The next prime is 11472667. The reversal of 11472661 is 16627411.

It can be written as a sum of positive squares in 4 ways, for example, as 122500 + 11350161 = 350^2 + 3369^2 .

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 11472661 - 2⁷ = 11472533 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 (11472667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3636 + ... + 6013.

It is an arithmetic number, because the mean of its divisors is an integer number (1519875).

Almost surely, 2^11472661 is an apocalyptic number.

It is an amenable number.

11472661 is a deficient number, since it is larger than the sum of its proper divisors (686339).

11472661 is an equidigital number, since it uses as much as digits as its factorization.

11472661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9719.

The product of its digits is 2016, while the sum is 28.

The square root of 11472661 is about 3387.1316773931. The cubic root of 11472661 is about 225.5388631534.

The spelling of 11472661 in words is "eleven million, four hundred seventy-two thousand, six hundred sixty-one".