9907679 has 2 divisors, whose sum is σ = 9907680. Its totient is φ = 9907678.

The previous prime is 9907669. The next prime is 9907697. The reversal of 9907679 is 9767099.

Together with next prime (9907697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9907679 - 2⁴ = 9907663 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9907619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4953839 + 4953840.

It is an arithmetic number, because the mean of its divisors is an integer number (4953840).

Almost surely, 2^9907679 is an apocalyptic number.

9907679 is a deficient number, since it is larger than the sum of its proper divisors (1).

9907679 is an equidigital number, since it uses as much as digits as its factorization.

9907679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 9907679 is about 3147.6465811778. The cubic root of 9907679 is about 214.7784196341.

The spelling of 9907679 in words is "nine million, nine hundred seven thousand, six hundred seventy-nine".