662998907 has 2 divisors, whose sum is σ = 662998908. Its totient is φ = 662998906.

The previous prime is 662998883. The next prime is 662998913. The reversal of 662998907 is 709899266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 662998907 - 2²² = 658804603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (662998927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331499453 + 331499454.

It is an arithmetic number, because the mean of its divisors is an integer number (331499454).

Almost surely, 2^662998907 is an apocalyptic number.

662998907 is a deficient number, since it is larger than the sum of its proper divisors (1).

662998907 is an equidigital number, since it uses as much as digits as its factorization.

662998907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The square root of 662998907 is about 25748.7651548574. The cubic root of 662998907 is about 871.9754761746.

The spelling of 662998907 in words is "six hundred sixty-two million, nine hundred ninety-eight thousand, nine hundred seven".