2387866 has 8 divisors (see below), whose sum is σ = 3857364. Its totient is φ = 1102080.

The previous prime is 2387857. The next prime is 2387867. The reversal of 2387866 is 6687832.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2387025 + 841 = 1545^2 + 29^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2387866³ = 40846148333839133688, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2²¹ + 3⁸ + 8 + 7⁴ + 8³ + 6⁴ + 6⁷ .

It is not an unprimeable number, because it can be changed into a prime (2387867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45895 + ... + 45946.

2^2387866 is an apocalyptic number.

2387866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2387866 is a deficient number, since it is larger than the sum of its proper divisors (1469498).

2387866 is a wasteful number, since it uses less digits than its factorization.

2387866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91856.

The product of its digits is 96768, while the sum is 40.

The square root of 2387866 is about 1545.2721443163. The cubic root of 2387866 is about 133.6605725904.

The spelling of 2387866 in words is "two million, three hundred eighty-seven thousand, eight hundred sixty-six".