2279873 has 4 divisors (see below), whose sum is σ = 2302548. Its totient is φ = 2257200.

The previous prime is 2279869. The next prime is 2279897. The reversal of 2279873 is 3789722.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1181569 + 1098304 = 1087^2 + 1048^2 .

It is a cyclic number.

It is not a de Polignac number, because 2279873 - 2² = 2279869 is a prime.

It is a super-2 number, since 2×2279873² = 10395641792258, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11186 + ... + 11387.

It is an arithmetic number, because the mean of its divisors is an integer number (575637).

2^2279873 is an apocalyptic number.

It is an amenable number.

2279873 is a deficient number, since it is larger than the sum of its proper divisors (22675).

2279873 is a wasteful number, since it uses less digits than its factorization.

2279873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22674.

The product of its digits is 42336, while the sum is 38.

The square root of 2279873 is about 1509.9248325662. The cubic root of 2279873 is about 131.6144434956.

The spelling of 2279873 in words is "two million, two hundred seventy-nine thousand, eight hundred seventy-three".