3787987 has 4 divisors (see below), whose sum is σ = 4329136. Its totient is φ = 3246840.

The previous prime is 3787981. The next prime is 3787997. The reversal of 3787987 is 7897873.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3787987 - 2¹¹ = 3785939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3787987.

It is not an unprimeable number, because it can be changed into a prime (3787981) 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 3 ways as a sum of consecutive naturals, for example, 270564 + ... + 270577.

It is an arithmetic number, because the mean of its divisors is an integer number (1082284).

Almost surely, 2^3787987 is an apocalyptic number.

3787987 is a deficient number, since it is larger than the sum of its proper divisors (541149).

3787987 is an equidigital number, since it uses as much as digits as its factorization.

3787987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541148.

The product of its digits is 592704, while the sum is 49.

The square root of 3787987 is about 1946.2751604026. The cubic root of 3787987 is about 155.8844613484.

It can be divided in two parts, 3787 and 987, that added together give a palindrome (4774).

The spelling of 3787987 in words is "three million, seven hundred eighty-seven thousand, nine hundred eighty-seven".