6623842 has 4 divisors (see below), whose sum is σ = 9935766. Its totient is φ = 3311920.

The previous prime is 6623833. The next prime is 6623857. The reversal of 6623842 is 2483266.

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

It can be written as a sum of positive squares in only one way, i.e., 5433561 + 1190281 = 2331^2 + 1091^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655959 + ... + 1655962.

Almost surely, 2^6623842 is an apocalyptic number.

6623842 is a deficient number, since it is larger than the sum of its proper divisors (3311924).

6623842 is a wasteful number, since it uses less digits than its factorization.

6623842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311923.

The product of its digits is 13824, while the sum is 31.

The square root of 6623842 is about 2573.6825756103. The cubic root of 6623842 is about 187.8033442334.

The spelling of 6623842 in words is "six million, six hundred twenty-three thousand, eight hundred forty-two".