9969817 has 24 divisors (see below), whose sum is σ = 12227328. Its totient is φ = 8049600.

The previous prime is 9969809. The next prime is 9969853. The reversal of 9969817 is 7189699.

It is not a de Polignac number, because 9969817 - 2³ = 9969809 is a prime.

It is a Duffinian number.

9969817 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9969857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57543 + ... + 57715.

It is an arithmetic number, because the mean of its divisors is an integer number (509472).

Almost surely, 2^9969817 is an apocalyptic number.

It is an amenable number.

9969817 is a deficient number, since it is larger than the sum of its proper divisors (2257511).

9969817 is a wasteful number, since it uses less digits than its factorization.

9969817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 228 counting only the distinct ones).

The product of its digits is 244944, while the sum is 49.

The square root of 9969817 is about 3157.5017022957. The cubic root of 9969817 is about 215.2264928827.

The spelling of 9969817 in words is "nine million, nine hundred sixty-nine thousand, eight hundred seventeen".