2077686 has 36 divisors (see below), whose sum is σ = 4881708. Its totient is φ = 638352.

The previous prime is 2077681. The next prime is 2077693. The reversal of 2077686 is 6867702.

It is a super-2 number, since 2×2077686² = 8633558229192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2077686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2077681) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2701 + ... + 3383.

It is an arithmetic number, because the mean of its divisors is an integer number (135603).

2^2077686 is an apocalyptic number.

2077686 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2077686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2440854).

2077686 is an abundant number, since it is smaller than the sum of its proper divisors (2804022).

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

2077686 is a wasteful number, since it uses less digits than its factorization.

2077686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 701 counting only the distinct ones).

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

The square root of 2077686 is about 1441.4180517810. The cubic root of 2077686 is about 127.6027315054.

The spelling of 2077686 in words is "two million, seventy-seven thousand, six hundred eighty-six".