6623542 has 8 divisors (see below), whose sum is σ = 10278000. Its totient is φ = 3197544.

The previous prime is 6623531. The next prime is 6623549. The reversal of 6623542 is 2453266.

It is a happy number.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6623542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6623549) 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, 57042 + ... + 57157.

It is an arithmetic number, because the mean of its divisors is an integer number (1284750).

Almost surely, 2^6623542 is an apocalyptic number.

6623542 is a deficient number, since it is larger than the sum of its proper divisors (3654458).

6623542 is a wasteful number, since it uses less digits than its factorization.

6623542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114230.

The product of its digits is 8640, while the sum is 28.

The square root of 6623542 is about 2573.6242927047. The cubic root of 6623542 is about 187.8005089276.

The spelling of 6623542 in words is "six million, six hundred twenty-three thousand, five hundred forty-two".