99172067 has 8 divisors (see below), whose sum is σ = 109571616. Its totient is φ = 89279872.

The previous prime is 99172043. The next prime is 99172081. The reversal of 99172067 is 76027199.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99172067 - 2¹⁶ = 99106531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99171067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126428 + ... + 127209.

It is an arithmetic number, because the mean of its divisors is an integer number (13696452).

Almost surely, 2^99172067 is an apocalyptic number.

99172067 is a deficient number, since it is larger than the sum of its proper divisors (10399549).

99172067 is a wasteful number, since it uses less digits than its factorization.

99172067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253677.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 99172067 is about 9958.5173093187. The cubic root of 99172067 is about 462.8743569499.

The spelling of 99172067 in words is "ninety-nine million, one hundred seventy-two thousand, sixty-seven".