99171263 has 8 divisors (see below), whose sum is σ = 102748800. Its totient is φ = 95617440.

The previous prime is 99171257. The next prime is 99171283. The reversal of 99171263 is 36217199.

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 99171263 - 2²⁴ = 82394047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99171253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2813 + ... + 14361.

It is an arithmetic number, because the mean of its divisors is an integer number (12843600).

Almost surely, 2^99171263 is an apocalyptic number.

99171263 is a deficient number, since it is larger than the sum of its proper divisors (3577537).

99171263 is a wasteful number, since it uses less digits than its factorization.

99171263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11857.

The product of its digits is 20412, while the sum is 38.

The square root of 99171263 is about 9958.4769417818. The cubic root of 99171263 is about 462.8731060870.

The spelling of 99171263 in words is "ninety-nine million, one hundred seventy-one thousand, two hundred sixty-three".