2669986 has 32 divisors (see below), whose sum is σ = 4743360. Its totient is φ = 1122880.

The previous prime is 2669977. The next prime is 2669987. The reversal of 2669986 is 6899662.

It is a happy number.

2669986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 2¹⁹ + 6³ + 6³ + 9³ + 9³ + 8⁷ + 6⁶ .

It is not an unprimeable number, because it can be changed into a prime (2669987) 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 15 ways as a sum of consecutive naturals, for example, 45225 + ... + 45283.

It is an arithmetic number, because the mean of its divisors is an integer number (148230).

2^2669986 is an apocalyptic number.

2669986 is a deficient number, since it is larger than the sum of its proper divisors (2073374).

2669986 is a wasteful number, since it uses less digits than its factorization.

2669986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 89 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 2669986 is about 1634.0091799008. The cubic root of 2669986 is about 138.7297684431.

It can be divided in two parts, 2669 and 986, that added together give a triangular number (3655 = T₈₅).

The spelling of 2669986 in words is "two million, six hundred sixty-nine thousand, nine hundred eighty-six".