2670823 has 4 divisors (see below), whose sum is σ = 2674480. Its totient is φ = 2667168.

The previous prime is 2670817. The next prime is 2670881. The reversal of 2670823 is 3280762.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 5-Lehmer number, since φ(2670823) divides (2670823-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 2670823 - 2⁵ = 2670791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2670791 and 2670800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2670223) 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, 315 + ... + 2332.

It is an arithmetic number, because the mean of its divisors is an integer number (668620).

2^2670823 is an apocalyptic number.

2670823 is a deficient number, since it is larger than the sum of its proper divisors (3657).

2670823 is a wasteful number, since it uses less digits than its factorization.

2670823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2670823 is about 1634.2652783438. The cubic root of 2670823 is about 138.7442634860.

The spelling of 2670823 in words is "two million, six hundred seventy thousand, eight hundred twenty-three".