2123679 has 8 divisors (see below), whose sum is σ = 2839600. Its totient is φ = 1411776.

The previous prime is 2123669. The next prime is 2123683. The reversal of 2123679 is 9763212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2123679 - 2⁴ = 2123663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597 + ... + 2145.

It is an arithmetic number, because the mean of its divisors is an integer number (354950).

2^2123679 is an apocalyptic number.

2123679 is a deficient number, since it is larger than the sum of its proper divisors (715921).

2123679 is a wasteful number, since it uses less digits than its factorization.

2123679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009.

The product of its digits is 4536, while the sum is 30.

The square root of 2123679 is about 1457.2848040105. The cubic root of 2123679 is about 128.5374335167.

The spelling of 2123679 in words is "two million, one hundred twenty-three thousand, six hundred seventy-nine".