9972199 has 2 divisors, whose sum is σ = 9972200. Its totient is φ = 9972198.

The previous prime is 9972187. The next prime is 9972233. The reversal of 9972199 is 9912799.

9972199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9972199 - 2¹¹ = 9970151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9972119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986099 + 4986100.

It is an arithmetic number, because the mean of its divisors is an integer number (4986100).

Almost surely, 2^9972199 is an apocalyptic number.

9972199 is a deficient number, since it is larger than the sum of its proper divisors (1).

9972199 is an equidigital number, since it uses as much as digits as its factorization.

9972199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91854, while the sum is 46.

The square root of 9972199 is about 3157.8788767146. The cubic root of 9972199 is about 215.2436322372.

The spelling of 9972199 in words is "nine million, nine hundred seventy-two thousand, one hundred ninety-nine".