99742727 has 8 divisors (see below), whose sum is σ = 115001376. Its totient is φ = 84736512.

The previous prime is 99742711. The next prime is 99742729. The reversal of 99742727 is 72724799.

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

It is not a de Polignac number, because 99742727 - 2⁴ = 99742711 is a prime.

It is a super-2 number, since 2×99742727² = 19897223178793058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99742729) 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, 62258 + ... + 63839.

It is an arithmetic number, because the mean of its divisors is an integer number (14375172).

Almost surely, 2^99742727 is an apocalyptic number.

99742727 is a deficient number, since it is larger than the sum of its proper divisors (15258649).

99742727 is a wasteful number, since it uses less digits than its factorization.

99742727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126217.

The product of its digits is 444528, while the sum is 47.

The square root of 99742727 is about 9987.1280656653. The cubic root of 99742727 is about 463.7604896846.

The spelling of 99742727 in words is "ninety-nine million, seven hundred forty-two thousand, seven hundred twenty-seven".