3987774 has 24 divisors (see below), whose sum is σ = 9874800. Its totient is φ = 1139328.

The previous prime is 3987769. The next prime is 3987791. The reversal of 3987774 is 4777893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15699 + ... + 15950.

It is an arithmetic number, because the mean of its divisors is an integer number (411450).

Almost surely, 2^3987774 is an apocalyptic number.

3987774 is an abundant number, since it is smaller than the sum of its proper divisors (5887026).

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

3987774 is a wasteful number, since it uses less digits than its factorization.

3987774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31664 (or 31661 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 3987774 is about 1996.9411608758. The cubic root of 3987774 is about 158.5782104303.

It can be divided in two parts, 3987 and 774, that added together give a square (4761 = 69²).

The spelling of 3987774 in words is "three million, nine hundred eighty-seven thousand, seven hundred seventy-four".