11772889 has 8 divisors (see below), whose sum is σ = 12140928. Its totient is φ = 11409840.

The previous prime is 11772847. The next prime is 11772899. The reversal of 11772889 is 98827711.

It is a happy number.

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 11772889 - 2¹¹ = 11770841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11772809) 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, 3859 + ... + 6199.

It is an arithmetic number, because the mean of its divisors is an integer number (1517616).

Almost surely, 2^11772889 is an apocalyptic number.

It is an amenable number.

11772889 is a deficient number, since it is larger than the sum of its proper divisors (368039).

11772889 is a wasteful number, since it uses less digits than its factorization.

11772889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495.

The product of its digits is 56448, while the sum is 43.

The square root of 11772889 is about 3431.1643796239. The cubic root of 11772889 is about 227.4893220444.

The spelling of 11772889 in words is "eleven million, seven hundred seventy-two thousand, eight hundred eighty-nine".