9912297679 has 2 divisors, whose sum is σ = 9912297680. Its totient is φ = 9912297678.

The previous prime is 9912297673. The next prime is 9912297683. The reversal of 9912297679 is 9767922199.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9912297679 - 2³ = 9912297671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9912297671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4956148839 + 4956148840.

It is an arithmetic number, because the mean of its divisors is an integer number (4956148840).

Almost surely, 2^9912297679 is an apocalyptic number.

9912297679 is a deficient number, since it is larger than the sum of its proper divisors (1).

9912297679 is an equidigital number, since it uses as much as digits as its factorization.

9912297679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7715736, while the sum is 61.

The square root of 9912297679 is about 99560.5226934853. The cubic root of 9912297679 is about 2148.1178898564.

The spelling of 9912297679 in words is "nine billion, nine hundred twelve million, two hundred ninety-seven thousand, six hundred seventy-nine".