99724127 has 4 divisors (see below), whose sum is σ = 103162920. Its totient is φ = 96285336.

The previous prime is 99724099. The next prime is 99724129. The reversal of 99724127 is 72142799.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 99724127 - 2¹² = 99720031 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 (99724129) 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, 1719353 + ... + 1719410.

It is an arithmetic number, because the mean of its divisors is an integer number (25790730).

Almost surely, 2^99724127 is an apocalyptic number.

99724127 is a deficient number, since it is larger than the sum of its proper divisors (3438793).

99724127 is a wasteful number, since it uses less digits than its factorization.

99724127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438792.

The product of its digits is 63504, while the sum is 41.

The square root of 99724127 is about 9986.1968236161. The cubic root of 99724127 is about 463.7316605772.

The spelling of 99724127 in words is "ninety-nine million, seven hundred twenty-four thousand, one hundred twenty-seven".