662225647 has 2 divisors, whose sum is σ = 662225648. Its totient is φ = 662225646.

The previous prime is 662225623. The next prime is 662225651. The reversal of 662225647 is 746522266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 662225647 - 2²³ = 653837039 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662225947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331112823 + 331112824.

It is an arithmetic number, because the mean of its divisors is an integer number (331112824).

Almost surely, 2^662225647 is an apocalyptic number.

662225647 is a deficient number, since it is larger than the sum of its proper divisors (1).

662225647 is an equidigital number, since it uses as much as digits as its factorization.

662225647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 40.

The square root of 662225647 is about 25733.7452967888. The cubic root of 662225647 is about 871.6363473805.

The spelling of 662225647 in words is "six hundred sixty-two million, two hundred twenty-five thousand, six hundred forty-seven".