1986546 has 16 divisors (see below), whose sum is σ = 4048704. Its totient is φ = 649584.

The previous prime is 1986541. The next prime is 1986547. The reversal of 1986546 is 6456891.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1986541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2806 + ... + 3441.

It is an arithmetic number, because the mean of its divisors is an integer number (253044).

2^1986546 is an apocalyptic number.

1986546 is an abundant number, since it is smaller than the sum of its proper divisors (2062158).

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

1986546 is a wasteful number, since it uses less digits than its factorization.

1986546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305.

The product of its digits is 51840, while the sum is 39.

The square root of 1986546 is about 1409.4488284432. The cubic root of 1986546 is about 125.7089528188.

The spelling of 1986546 in words is "one million, nine hundred eighty-six thousand, five hundred forty-six".