2206776 has 64 divisors (see below), whose sum is σ = 6491520. Its totient is φ = 616320.

The previous prime is 2206769. The next prime is 2206783. The reversal of 2206776 is 6776022.

It is an interprime number because it is at equal distance from previous prime (2206769) and next prime (2206783).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3111 + ... + 3753.

It is an arithmetic number, because the mean of its divisors is an integer number (101430).

2^2206776 is an apocalyptic number.

2206776 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2206776 is the 858-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2206776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3245760).

2206776 is an abundant number, since it is smaller than the sum of its proper divisors (4284744).

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

2206776 is a wasteful number, since it uses less digits than its factorization.

2206776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 2206776 is about 1485.5221304309. The cubic root of 2206776 is about 130.1925352197.

It can be divided in two parts, 220 and 6776, that added together give a palindrome (6996).

The spelling of 2206776 in words is "two million, two hundred six thousand, seven hundred seventy-six".