1986632 has 16 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 986704.

The previous prime is 1986631. The next prime is 1986679. The reversal of 1986632 is 2366891.

It is a junction number, because it is equal to n+sod(n) for n = 1986592 and 1986601.

It is not an unprimeable number, because it can be changed into a prime (1986631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (234360).

2^1986632 is an apocalyptic number.

It is an amenable number.

1986632 is a deficient number, since it is larger than the sum of its proper divisors (1763128).

1986632 is a wasteful number, since it uses less digits than its factorization.

1986632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 1656 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 1986632 is about 1409.4793364927. The cubic root of 1986632 is about 125.7107668240.

The spelling of 1986632 in words is "one million, nine hundred eighty-six thousand, six hundred thirty-two".