2387889 has 24 divisors (see below), whose sum is σ = 4080960. Its totient is φ = 1316448.

The previous prime is 2387873. The next prime is 2387897. The reversal of 2387889 is 9887832.

2387889 = T₄₀₇ + T₄₀₈ + ... + T₄₃₃.

It is not a de Polignac number, because 2387889 - 2⁴ = 2387873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2387839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1174 + ... + 2480.

It is an arithmetic number, because the mean of its divisors is an integer number (170040).

2^2387889 is an apocalyptic number.

2387889 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2387889 is a deficient number, since it is larger than the sum of its proper divisors (1693071).

2387889 is a wasteful number, since it uses less digits than its factorization.

2387889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1346 counting only the distinct ones).

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

The square root of 2387889 is about 1545.2795863532. The cubic root of 2387889 is about 133.6610017299.

The spelling of 2387889 in words is "two million, three hundred eighty-seven thousand, eight hundred eighty-nine".