9699959 has 2 divisors, whose sum is σ = 9699960. Its totient is φ = 9699958.

The previous prime is 9699953. The next prime is 9699973. The reversal of 9699959 is 9599969.

It is a weak prime.

It is an emirp because it is prime and its reverse (9599969) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9699959 - 2¹⁶ = 9634423 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 (9699953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4849979 + 4849980.

It is an arithmetic number, because the mean of its divisors is an integer number (4849980).

Almost surely, 2^9699959 is an apocalyptic number.

9699959 is a deficient number, since it is larger than the sum of its proper divisors (1).

9699959 is an equidigital number, since it uses as much as digits as its factorization.

9699959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1771470, while the sum is 56.

The square root of 9699959 is about 3114.4757183192. The cubic root of 9699959 is about 213.2668230707.

The spelling of 9699959 in words is "nine million, six hundred ninety-nine thousand, nine hundred fifty-nine".