1879866 has 24 divisors (see below), whose sum is σ = 4102644. Its totient is φ = 622080.

The previous prime is 1879849. The next prime is 1879873. The reversal of 1879866 is 6689781.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1879641 + 225 = 1371^2 + 15^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2970 + ... + 3546.

2^1879866 is an apocalyptic number.

1879866 is an abundant number, since it is smaller than the sum of its proper divisors (2222778).

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

1879866 is a wasteful number, since it uses less digits than its factorization.

1879866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 763 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 1879866 is about 1371.0820544373. The cubic root of 1879866 is about 123.4171834640.

The spelling of 1879866 in words is "one million, eight hundred seventy-nine thousand, eight hundred sixty-six".