1986472 has 8 divisors (see below), whose sum is σ = 3724650. Its totient is φ = 993232.

The previous prime is 1986461. The next prime is 1986497. The reversal of 1986472 is 2746891.

It can be written as a sum of positive squares in only one way, i.e., 1887876 + 98596 = 1374^2 + 314^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124147 + ... + 124162.

2^1986472 is an apocalyptic number.

It is an amenable number.

1986472 is a deficient number, since it is larger than the sum of its proper divisors (1738178).

1986472 is a wasteful number, since it uses less digits than its factorization.

1986472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248315 (or 248311 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 1986472 is about 1409.4225768023. The cubic root of 1986472 is about 125.7073918888.

It can be divided in two parts, 198 and 6472, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 1986472 in words is "one million, nine hundred eighty-six thousand, four hundred seventy-two".