9969870 has 32 divisors (see below), whose sum is σ = 25188480. Its totient is φ = 2518560.

The previous prime is 9969859. The next prime is 9969887. The reversal of 9969870 is 789699.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8176 + ... + 9315.

It is an arithmetic number, because the mean of its divisors is an integer number (787140).

Almost surely, 2^9969870 is an apocalyptic number.

9969870 is an abundant number, since it is smaller than the sum of its proper divisors (15218610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9969870 is a wasteful number, since it uses less digits than its factorization.

9969870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17520.

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

The square root of 9969870 is about 3157.5100949957. The cubic root of 9969870 is about 215.2268742666.

The spelling of 9969870 in words is "nine million, nine hundred sixty-nine thousand, eight hundred seventy".