2643934 has 8 divisors (see below), whose sum is σ = 3972960. Its totient is φ = 1319616.

The previous prime is 2643917. The next prime is 2643943. The reversal of 2643934 is 4393462.

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

It is a junction number, because it is equal to n+sod(n) for n = 2643896 and 2643905.

It is a congruent number.

It is an unprimeable number.

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, 1147 + ... + 2569.

It is an arithmetic number, because the mean of its divisors is an integer number (496620).

2^2643934 is an apocalyptic number.

2643934 is a deficient number, since it is larger than the sum of its proper divisors (1329026).

2643934 is a wasteful number, since it uses less digits than its factorization.

2643934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354.

The product of its digits is 15552, while the sum is 31.

The square root of 2643934 is about 1626.0178350805. The cubic root of 2643934 is about 138.2770810462.

The spelling of 2643934 in words is "two million, six hundred forty-three thousand, nine hundred thirty-four".