9969807 has 8 divisors (see below), whose sum is σ = 13341184. Its totient is φ = 6622488.

The previous prime is 9969797. The next prime is 9969809. The reversal of 9969807 is 7089699.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9969807 - 2⁸ = 9969551 is a prime.

It is the 3158-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9969809) by changing a digit.

It is a nontrivial repunit in base 3157.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5023 + ... + 6720.

It is an arithmetic number, because the mean of its divisors is an integer number (1667648).

Almost surely, 2^9969807 is an apocalyptic number.

9969807 is a deficient number, since it is larger than the sum of its proper divisors (3371377).

9969807 is a wasteful number, since it uses less digits than its factorization.

9969807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12029.

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 9969807 is about 3157.5001187648. The cubic root of 9969807 is about 215.2264209233.

The spelling of 9969807 in words is "nine million, nine hundred sixty-nine thousand, eight hundred seven".