11864487 has 16 divisors (see below), whose sum is σ = 17038080. Its totient is φ = 7316352.

The previous prime is 11864483. The next prime is 11864491. The reversal of 11864487 is 78446811.

11864487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11864483) and next prime (11864491).

It is not a de Polignac number, because 11864487 - 2² = 11864483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11864483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1038 + ... + 4980.

It is an arithmetic number, because the mean of its divisors is an integer number (1064880).

Almost surely, 2^11864487 is an apocalyptic number.

11864487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11864487 is a deficient number, since it is larger than the sum of its proper divisors (5173593).

11864487 is a wasteful number, since it uses less digits than its factorization.

11864487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022.

The product of its digits is 43008, while the sum is 39.

The square root of 11864487 is about 3444.4864639014. The cubic root of 11864487 is about 228.0777858629.

The spelling of 11864487 in words is "eleven million, eight hundred sixty-four thousand, four hundred eighty-seven".