2215766 has 8 divisors (see below), whose sum is σ = 3798480. Its totient is φ = 949608.

The previous prime is 2215699. The next prime is 2215777. The reversal of 2215766 is 6675122.

2215766 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

2215766 is strictly pandigital in base 8.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79121 + ... + 79148.

It is an arithmetic number, because the mean of its divisors is an integer number (474810).

2^2215766 is an apocalyptic number.

2215766 is a deficient number, since it is larger than the sum of its proper divisors (1582714).

2215766 is a wasteful number, since it uses less digits than its factorization.

2215766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158278.

The product of its digits is 5040, while the sum is 29.

The square root of 2215766 is about 1488.5449271016. The cubic root of 2215766 is about 130.3690891767.

The spelling of 2215766 in words is "two million, two hundred fifteen thousand, seven hundred sixty-six".