6625747 has 2 divisors, whose sum is σ = 6625748. Its totient is φ = 6625746.

The previous prime is 6625709. The next prime is 6625769. The reversal of 6625747 is 7475266.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6625747 is a prime.

It is not a weakly prime, because it can be changed into another prime (6625777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3312873 + 3312874.

It is an arithmetic number, because the mean of its divisors is an integer number (3312874).

Almost surely, 2^6625747 is an apocalyptic number.

6625747 is a deficient number, since it is larger than the sum of its proper divisors (1).

6625747 is an equidigital number, since it uses as much as digits as its factorization.

6625747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 37.

The square root of 6625747 is about 2574.0526412644. The cubic root of 6625747 is about 187.8213464280.

The spelling of 6625747 in words is "six million, six hundred twenty-five thousand, seven hundred forty-seven".