2913823 has 4 divisors (see below), whose sum is σ = 3178728. Its totient is φ = 2648920.

The previous prime is 2913811. The next prime is 2913863. The reversal of 2913823 is 3283192.

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

It is a cyclic number.

It is not a de Polignac number, because 2913823 - 2⁵ = 2913791 is a prime.

It is a Duffinian number.

2913823 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2913791 and 2913800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2913803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132436 + ... + 132457.

It is an arithmetic number, because the mean of its divisors is an integer number (794682).

2^2913823 is an apocalyptic number.

2913823 is a deficient number, since it is larger than the sum of its proper divisors (264905).

2913823 is a wasteful number, since it uses less digits than its factorization.

2913823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264904.

The product of its digits is 2592, while the sum is 28.

The square root of 2913823 is about 1706.9923842830. The cubic root of 2913823 is about 142.8305326150.

It can be divided in two parts, 29138 and 23, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 2913823 in words is "two million, nine hundred thirteen thousand, eight hundred twenty-three".