11477889 has 8 divisors (see below), whose sum is σ = 17004320. Its totient is φ = 7651908.

The previous prime is 11477887. The next prime is 11477891. The reversal of 11477889 is 98877411.

It is an interprime number because it is at equal distance from previous prime (11477887) and next prime (11477891).

It is not a de Polignac number, because 11477889 - 2¹ = 11477887 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11477887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212527 + ... + 212580.

It is an arithmetic number, because the mean of its divisors is an integer number (2125540).

Almost surely, 2^11477889 is an apocalyptic number.

It is an amenable number.

11477889 is a deficient number, since it is larger than the sum of its proper divisors (5526431).

11477889 is an equidigital number, since it uses as much as digits as its factorization.

11477889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425116 (or 425110 counting only the distinct ones).

The product of its digits is 112896, while the sum is 45.

The square root of 11477889 is about 3387.9033339220. The cubic root of 11477889 is about 225.5731167038.

The spelling of 11477889 in words is "eleven million, four hundred seventy-seven thousand, eight hundred eighty-nine".