99927279 has 24 divisors (see below), whose sum is σ = 146740464. Its totient is φ = 65520000.

The previous prime is 99927277. The next prime is 99927281. The reversal of 99927279 is 97272999.

It is an interprime number because it is at equal distance from previous prime (99927277) and next prime (99927281).

It is not a de Polignac number, because 99927279 - 2¹ = 99927277 is a prime.

It is a super-2 number, since 2×99927279² = 19970922176687682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99927271) 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 23 ways as a sum of consecutive naturals, for example, 191539 + ... + 192059.

It is an arithmetic number, because the mean of its divisors is an integer number (6114186).

Almost surely, 2^99927279 is an apocalyptic number.

99927279 is a deficient number, since it is larger than the sum of its proper divisors (46813185).

99927279 is a wasteful number, since it uses less digits than its factorization.

99927279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 836 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 54.

The square root of 99927279 is about 9996.3632887166. The cubic root of 99927279 is about 464.0463424160.

It can be divided in two parts, 9992 and 7279, that added together give a palindrome (17271).

The spelling of 99927279 in words is "ninety-nine million, nine hundred twenty-seven thousand, two hundred seventy-nine".