1987252 has 6 divisors (see below), whose sum is σ = 3477698. Its totient is φ = 993624.

The previous prime is 1987247. The next prime is 1987261. The reversal of 1987252 is 2527891.

It can be written as a sum of positive squares in only one way, i.e., 1572516 + 414736 = 1254^2 + 644^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248403 + ... + 248410.

2^1987252 is an apocalyptic number.

It is an amenable number.

1987252 is a deficient number, since it is larger than the sum of its proper divisors (1490446).

1987252 is a wasteful number, since it uses less digits than its factorization.

1987252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496817 (or 496815 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 1987252 is about 1409.6992587073. The cubic root of 1987252 is about 125.7238429865.

The spelling of 1987252 in words is "one million, nine hundred eighty-seven thousand, two hundred fifty-two".