99172711 has 8 divisors (see below), whose sum is σ = 112892544. Its totient is φ = 86236920.

The previous prime is 99172693. The next prime is 99172753. The reversal of 99172711 is 11727199.

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

It is not a de Polignac number, because 99172711 - 2¹¹ = 99170663 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 (99172771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195741 + ... + 196246.

It is an arithmetic number, because the mean of its divisors is an integer number (14111568).

Almost surely, 2^99172711 is an apocalyptic number.

99172711 is a deficient number, since it is larger than the sum of its proper divisors (13719833).

99172711 is a wasteful number, since it uses less digits than its factorization.

99172711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392021.

The product of its digits is 7938, while the sum is 37.

The square root of 99172711 is about 9958.5496433969. The cubic root of 99172711 is about 462.8753588800.

The spelling of 99172711 in words is "ninety-nine million, one hundred seventy-two thousand, seven hundred eleven".