2765216 has 12 divisors (see below), whose sum is σ = 5444082. Its totient is φ = 1382592.

The previous prime is 2765209. The next prime is 2765219. The reversal of 2765216 is 6125672.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 633616 = 1460^2 + 796^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2765219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43175 + ... + 43238.

2^2765216 is an apocalyptic number.

It is an amenable number.

2765216 is a deficient number, since it is larger than the sum of its proper divisors (2678866).

2765216 is an equidigital number, since it uses as much as digits as its factorization.

2765216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86423 (or 86415 counting only the distinct ones).

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

The square root of 2765216 is about 1662.8938631194. The cubic root of 2765216 is about 140.3598903832.

The spelling of 2765216 in words is "two million, seven hundred sixty-five thousand, two hundred sixteen".