2866690 has 16 divisors (see below), whose sum is σ = 5219640. Its totient is φ = 1133440.

The previous prime is 2866667. The next prime is 2866691. The reversal of 2866690 is 966682.

2866690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2241009 + 625681 = 1497^2 + 791^2 .

It is a super-2 number, since 2×2866690² = 16435823112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2866691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721 + ... + 2500.

2^2866690 is an apocalyptic number.

2866690 is a deficient number, since it is larger than the sum of its proper divisors (2352950).

2866690 is a wasteful number, since it uses less digits than its factorization.

2866690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2866690 is about 1693.1302371643. The cubic root of 2866690 is about 142.0562165829.

The spelling of 2866690 in words is "two million, eight hundred sixty-six thousand, six hundred ninety".