2279986 has 4 divisors (see below), whose sum is σ = 3419982. Its totient is φ = 1139992.

The previous prime is 2279933. The next prime is 2279993. The reversal of 2279986 is 6899722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1739761 + 540225 = 1319^2 + 735^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569995 + ... + 569998.

2^2279986 is an apocalyptic number.

2279986 is a deficient number, since it is larger than the sum of its proper divisors (1139996).

2279986 is a wasteful number, since it uses less digits than its factorization.

2279986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139995.

The product of its digits is 108864, while the sum is 43.

The square root of 2279986 is about 1509.9622511838. The cubic root of 2279986 is about 131.6166179130.

It can be divided in two parts, 22 and 79986, that added together give a palindrome (80008).

The spelling of 2279986 in words is "two million, two hundred seventy-nine thousand, nine hundred eighty-six".