1987484 has 6 divisors (see below), whose sum is σ = 3478104. Its totient is φ = 993740.

The previous prime is 1987483. The next prime is 1987501. The reversal of 1987484 is 4847891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1987481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248432 + ... + 248439.

It is an arithmetic number, because the mean of its divisors is an integer number (579684).

2^1987484 is an apocalyptic number.

It is an amenable number.

1987484 is a deficient number, since it is larger than the sum of its proper divisors (1490620).

1987484 is a wasteful number, since it uses less digits than its factorization.

1987484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496875 (or 496873 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 1987484 is about 1409.7815433605. The cubic root of 1987484 is about 125.7287353029.

The spelling of 1987484 in words is "one million, nine hundred eighty-seven thousand, four hundred eighty-four".