3987700 has 18 divisors (see below), whose sum is σ = 8653526. Its totient is φ = 1595040.

The previous prime is 3987677. The next prime is 3987727. The reversal of 3987700 is 77893.

It can be written as a sum of positive squares in 3 ways, for example, as 11664 + 3976036 = 108^2 + 1994^2 .

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 5 ways as a sum of consecutive naturals, for example, 19839 + ... + 20038.

Almost surely, 2^3987700 is an apocalyptic number.

It is an amenable number.

3987700 is an abundant number, since it is smaller than the sum of its proper divisors (4665826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3987700 is a wasteful number, since it uses less digits than its factorization.

3987700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39891 (or 39884 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 3987700 is about 1996.9226324522. The cubic root of 3987700 is about 158.5772295272.

The spelling of 3987700 in words is "three million, nine hundred eighty-seven thousand, seven hundred".