3888787 has 12 divisors (see below), whose sum is σ = 4762920. Its totient is φ = 3157056.

The previous prime is 3888763. The next prime is 3888823. The reversal of 3888787 is 7878883.

It is a de Polignac number, because none of the positive numbers 2^k-3888787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an Ulam number.

3888787 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3888787.

It is not an unprimeable number, because it can be changed into a prime (3888887) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1158 + ... + 3019.

It is an arithmetic number, because the mean of its divisors is an integer number (396910).

Almost surely, 2^3888787 is an apocalyptic number.

3888787 is a deficient number, since it is larger than the sum of its proper divisors (874133).

3888787 is a wasteful number, since it uses less digits than its factorization.

3888787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210 (or 4203 counting only the distinct ones).

The product of its digits is 602112, while the sum is 49.

The square root of 3888787 is about 1972.0007606489. Note that the first 3 decimals coincide. The cubic root of 3888787 is about 157.2550926254.

The spelling of 3888787 in words is "three million, eight hundred eighty-eight thousand, seven hundred eighty-seven".