1966884 has 24 divisors (see below), whose sum is σ = 4666368. Its totient is φ = 644640.

The previous prime is 1966879. The next prime is 1966889. The reversal of 1966884 is 4886691.

It is an interprime number because it is at equal distance from previous prime (1966879) and next prime (1966889).

It is not an unprimeable number, because it can be changed into a prime (1966889) 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, 612 + ... + 2075.

It is an arithmetic number, because the mean of its divisors is an integer number (194432).

2^1966884 is an apocalyptic number.

It is an amenable number.

1966884 is an abundant number, since it is smaller than the sum of its proper divisors (2699484).

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

1966884 is a wasteful number, since it uses less digits than its factorization.

1966884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755 (or 2753 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 1966884 is about 1402.4564164351. The cubic root of 1966884 is about 125.2928387613.

It can be divided in two parts, 1966 and 884, that added together give a triangular number (2850 = T₇₅).

The spelling of 1966884 in words is "one million, nine hundred sixty-six thousand, eight hundred eighty-four".