9970518 has 16 divisors (see below), whose sum is σ = 20139696. Its totient is φ = 3290400.

The previous prime is 9970489. The next prime is 9970529. The reversal of 9970518 is 8150799.

It is a happy number.

It is a super-2 number, since 2×9970518² = 198822458376648, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7621 + ... + 8832.

It is an arithmetic number, because the mean of its divisors is an integer number (1258731).

Almost surely, 2^9970518 is an apocalyptic number.

9970518 is an abundant number, since it is smaller than the sum of its proper divisors (10169178).

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

9970518 is a wasteful number, since it uses less digits than its factorization.

9970518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16559.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 9970518 is about 3157.6127058270. The cubic root of 9970518 is about 215.2315371156.

The spelling of 9970518 in words is "nine million, nine hundred seventy thousand, five hundred eighteen".