9973810 has 32 divisors (see below), whose sum is σ = 22384512. Its totient is φ = 3108480.

The previous prime is 9973793. The next prime is 9973811. The reversal of 9973810 is 183799.

It is a super-2 number, since 2×9973810² = 198953771832200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9973810.

It is not an unprimeable number, because it can be changed into a prime (9973811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5707 + ... + 7246.

It is an arithmetic number, because the mean of its divisors is an integer number (699516).

Almost surely, 2^9973810 is an apocalyptic number.

9973810 is an abundant number, since it is smaller than the sum of its proper divisors (12410702).

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

9973810 is a wasteful number, since it uses less digits than its factorization.

9973810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12978.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 9973810 is about 3158.1339426946. The cubic root of 9973810 is about 215.2552224197.

The spelling of 9973810 in words is "nine million, nine hundred seventy-three thousand, eight hundred ten".