2387885 has 4 divisors (see below), whose sum is σ = 2865468. Its totient is φ = 1910304.

The previous prime is 2387873. The next prime is 2387897. The reversal of 2387885 is 5887832.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2387873) and next prime (2387897).

It can be written as a sum of positive squares in 2 ways, for example, as 276676 + 2111209 = 526^2 + 1453^2 .

It is a cyclic number.

It is not a de Polignac number, because 2387885 - 2⁶ = 2387821 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁹ + 3¹³ + 8 + 7⁴ + 8⁴ + 8⁶ + 5⁴ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238784 + ... + 238793.

It is an arithmetic number, because the mean of its divisors is an integer number (716367).

2^2387885 is an apocalyptic number.

It is an amenable number.

2387885 is a deficient number, since it is larger than the sum of its proper divisors (477583).

2387885 is an equidigital number, since it uses as much as digits as its factorization.

2387885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477582.

The product of its digits is 107520, while the sum is 41.

The square root of 2387885 is about 1545.2782920885. The cubic root of 2387885 is about 133.6609270971.

The spelling of 2387885 in words is "two million, three hundred eighty-seven thousand, eight hundred eighty-five".