6625738 has 16 divisors (see below), whose sum is σ = 11666304. Its totient is φ = 2762640.

The previous prime is 6625709. The next prime is 6625747. The reversal of 6625738 is 8375266.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 6625697 and 6625706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5878 + ... + 6913.

It is an arithmetic number, because the mean of its divisors is an integer number (729144).

Almost surely, 2^6625738 is an apocalyptic number.

6625738 is a deficient number, since it is larger than the sum of its proper divisors (5040566).

6625738 is a wasteful number, since it uses less digits than its factorization.

6625738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12837.

The product of its digits is 60480, while the sum is 37.

The square root of 6625738 is about 2574.0508930478. The cubic root of 6625738 is about 187.8212613864.

It can be divided in two parts, 662 and 5738, that added together give a square (6400 = 80²).

The spelling of 6625738 in words is "six million, six hundred twenty-five thousand, seven hundred thirty-eight".