9987226 has 4 divisors (see below), whose sum is σ = 14980842. Its totient is φ = 4993612.

The previous prime is 9987209. The next prime is 9987247. The reversal of 9987226 is 6227899.

It is a happy number.

9987226 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6227899 = 17 ⋅366347.

It can be written as a sum of positive squares in only one way, i.e., 6765201 + 3222025 = 2601^2 + 1795^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496805 + ... + 2496808.

Almost surely, 2^9987226 is an apocalyptic number.

9987226 is a deficient number, since it is larger than the sum of its proper divisors (4993616).

9987226 is a wasteful number, since it uses less digits than its factorization.

9987226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993615.

The product of its digits is 108864, while the sum is 43.

The square root of 9987226 is about 3160.2572680084. The cubic root of 9987226 is about 215.3516940852.

The spelling of 9987226 in words is "nine million, nine hundred eighty-seven thousand, two hundred twenty-six".