6826642 has 4 divisors (see below), whose sum is σ = 10239966. Its totient is φ = 3413320.

The previous prime is 6826621. The next prime is 6826657. The reversal of 6826642 is 2466286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2466286 = 2 ⋅1233143.

It can be written as a sum of positive squares in only one way, i.e., 6105841 + 720801 = 2471^2 + 849^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6826598 and 6826607.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1706659 + ... + 1706662.

Almost surely, 2^6826642 is an apocalyptic number.

6826642 is a deficient number, since it is larger than the sum of its proper divisors (3413324).

6826642 is a wasteful number, since it uses less digits than its factorization.

6826642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413323.

The product of its digits is 27648, while the sum is 34.

The square root of 6826642 is about 2612.7843385936. The cubic root of 6826642 is about 189.7007477582.

It can be divided in two parts, 68 and 26642, that multiplied together give a triangular number (1811656 = T₁₉₀₃).

The spelling of 6826642 in words is "six million, eight hundred twenty-six thousand, six hundred forty-two".