9956699 has 2 divisors, whose sum is σ = 9956700. Its totient is φ = 9956698.

The previous prime is 9956641. The next prime is 9956717. The reversal of 9956699 is 9966599.

It is a strong prime.

It is an emirp because it is prime and its reverse (9966599) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9956699 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9956699.

It is not a weakly prime, because it can be changed into another prime (9959699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4978349 + 4978350.

It is an arithmetic number, because the mean of its divisors is an integer number (4978350).

Almost surely, 2^9956699 is an apocalyptic number.

9956699 is a deficient number, since it is larger than the sum of its proper divisors (1).

9956699 is an equidigital number, since it uses as much as digits as its factorization.

9956699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 53.

The square root of 9956699 is about 3155.4237433346. The cubic root of 9956699 is about 215.1320551637.

The spelling of 9956699 in words is "nine million, nine hundred fifty-six thousand, six hundred ninety-nine".