6623788 has 6 divisors (see below), whose sum is σ = 11591636. Its totient is φ = 3311892.

The previous prime is 6623759. The next prime is 6623789. The reversal of 6623788 is 8873266.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6623788.

It is not an unprimeable number, because it can be changed into a prime (6623789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827970 + ... + 827977.

Almost surely, 2^6623788 is an apocalyptic number.

It is an amenable number.

6623788 is a deficient number, since it is larger than the sum of its proper divisors (4967848).

6623788 is a wasteful number, since it uses less digits than its factorization.

6623788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655951 (or 1655949 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 6623788 is about 2573.6720847847. The cubic root of 6623788 is about 187.8028338847.

The spelling of 6623788 in words is "six million, six hundred twenty-three thousand, seven hundred eighty-eight".