2279523 has 16 divisors (see below), whose sum is σ = 3178496. Its totient is φ = 1451520.

The previous prime is 2279491. The next prime is 2279527. The reversal of 2279523 is 3259722.

It is a happy number.

It is not a de Polignac number, because 2279523 - 2⁵ = 2279491 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (2279527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11715 + ... + 11907.

It is an arithmetic number, because the mean of its divisors is an integer number (198656).

2^2279523 is an apocalyptic number.

2279523 is a deficient number, since it is larger than the sum of its proper divisors (898973).

2279523 is a wasteful number, since it uses less digits than its factorization.

2279523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354.

The product of its digits is 7560, while the sum is 30.

The square root of 2279523 is about 1509.8089283085. The cubic root of 2279523 is about 131.6077081186.

The spelling of 2279523 in words is "two million, two hundred seventy-nine thousand, five hundred twenty-three".