9972236 has 12 divisors (see below), whose sum is σ = 17474520. Its totient is φ = 4979520.

The previous prime is 9972233. The next prime is 9972241. The reversal of 9972236 is 6322799.

It is a d-powerful number, because it can be written as 9⁴ + 9⁴ + 7⁸ + 2²¹ + 2²¹ + 3 + 6 .

It is a self number, because there is not a number n which added to its sum of digits gives 9972236.

It is not an unprimeable number, because it can be changed into a prime (9972233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3620 + ... + 5748.

It is an arithmetic number, because the mean of its divisors is an integer number (1456210).

Almost surely, 2^9972236 is an apocalyptic number.

It is an amenable number.

9972236 is a deficient number, since it is larger than the sum of its proper divisors (7502284).

9972236 is a wasteful number, since it uses less digits than its factorization.

9972236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304 (or 3302 counting only the distinct ones).

The product of its digits is 40824, while the sum is 38.

The square root of 9972236 is about 3157.8847350719. The cubic root of 9972236 is about 215.2438984441.

The spelling of 9972236 in words is "nine million, nine hundred seventy-two thousand, two hundred thirty-six".