9969959 has 2 divisors, whose sum is σ = 9969960. Its totient is φ = 9969958.

The previous prime is 9969943. The next prime is 9970001. The reversal of 9969959 is 9599699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9969959 - 2⁴ = 9969943 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 (9969919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984979 + 4984980.

It is an arithmetic number, because the mean of its divisors is an integer number (4984980).

Almost surely, 2^9969959 is an apocalyptic number.

9969959 is a deficient number, since it is larger than the sum of its proper divisors (1).

9969959 is an equidigital number, since it uses as much as digits as its factorization.

9969959 is an odious number, because the sum of its binary digits is odd.

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

The square root of 9969959 is about 3157.5241883476. The cubic root of 9969959 is about 215.2275147008.

The spelling of 9969959 in words is "nine million, nine hundred sixty-nine thousand, nine hundred fifty-nine".