2077866 has 64 divisors (see below), whose sum is σ = 5529600. Its totient is φ = 565488.

The previous prime is 2077861. The next prime is 2077891. The reversal of 2077866 is 6687702.

It is a super-2 number, since 2×2077866² = 8635054227912, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2077866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2077861) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8575 + ... + 8813.

It is an arithmetic number, because the mean of its divisors is an integer number (86400).

2^2077866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2077866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2764800).

2077866 is an abundant number, since it is smaller than the sum of its proper divisors (3451734).

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

2077866 is a wasteful number, since it uses less digits than its factorization.

2077866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 2077866 is about 1441.4804889418. The cubic root of 2077866 is about 127.6064163465.

The spelling of 2077866 in words is "two million, seventy-seven thousand, eight hundred sixty-six".