2206815 has 16 divisors (see below), whose sum is σ = 3802848. Its totient is φ = 1086336.

The previous prime is 2206811. The next prime is 2206817. The reversal of 2206815 is 5186022.

It is not a de Polignac number, because 2206815 - 2² = 2206811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5464 + ... + 5853.

It is an arithmetic number, because the mean of its divisors is an integer number (237678).

2^2206815 is an apocalyptic number.

2206815 is a deficient number, since it is larger than the sum of its proper divisors (1596033).

2206815 is a wasteful number, since it uses less digits than its factorization.

2206815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11338.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2206815 is about 1485.5352570707. The cubic root of 2206815 is about 130.1933021724.

The spelling of 2206815 in words is "two million, two hundred six thousand, eight hundred fifteen".