6625806 has 16 divisors (see below), whose sum is σ = 14456448. Its totient is φ = 2007800.

The previous prime is 6625789. The next prime is 6625819. The reversal of 6625806 is 6085266.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50130 + ... + 50261.

It is an arithmetic number, because the mean of its divisors is an integer number (903528).

Almost surely, 2^6625806 is an apocalyptic number.

6625806 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6625806 is an abundant number, since it is smaller than the sum of its proper divisors (7830642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6625806 is a wasteful number, since it uses less digits than its factorization.

6625806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100407.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 6625806 is about 2574.0641017659. The cubic root of 6625806 is about 187.8219039212.

The spelling of 6625806 in words is "six million, six hundred twenty-five thousand, eight hundred six".