2388987 has 16 divisors (see below), whose sum is σ = 3694080. Its totient is φ = 1523016.

The previous prime is 2388983. The next prime is 2389001. The reversal of 2388987 is 7898832.

It is not a de Polignac number, because 2388987 - 2² = 2388983 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2388983) 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, 1303 + ... + 2544.

It is an arithmetic number, because the mean of its divisors is an integer number (230880).

2^2388987 is an apocalyptic number.

2388987 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2388987 is a deficient number, since it is larger than the sum of its proper divisors (1305093).

2388987 is a wasteful number, since it uses less digits than its factorization.

2388987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879 (or 3873 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 2388987 is about 1545.6348210363. The cubic root of 2388987 is about 133.6814852743.

It can be divided in two parts, 2388 and 987, that added together give a cube (3375 = 15³).

The spelling of 2388987 in words is "two million, three hundred eighty-eight thousand, nine hundred eighty-seven".