2685923 has 4 divisors (see below), whose sum is σ = 2707200. Its totient is φ = 2664648.

The previous prime is 2685913. The next prime is 2685929. The reversal of 2685923 is 3295862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3295862 = 2 ⋅1647931.

It is a cyclic number.

It is not a de Polignac number, because 2685923 - 2⁸ = 2685667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2685929) 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, 10448 + ... + 10701.

It is an arithmetic number, because the mean of its divisors is an integer number (676800).

2^2685923 is an apocalyptic number.

2685923 is a deficient number, since it is larger than the sum of its proper divisors (21277).

2685923 is a wasteful number, since it uses less digits than its factorization.

2685923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21276.

The product of its digits is 25920, while the sum is 35.

The square root of 2685923 is about 1638.8785800052. The cubic root of 2685923 is about 139.0052445272.

The spelling of 2685923 in words is "two million, six hundred eighty-five thousand, nine hundred twenty-three".