99947115 has 24 divisors (see below), whose sum is σ = 179660208. Its totient is φ = 53304480.

The previous prime is 99947083. The next prime is 99947119. The reversal of 99947115 is 51174999.

It is not a de Polignac number, because 99947115 - 2⁵ = 99947083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (99947119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39916 + ... + 42345.

It is an arithmetic number, because the mean of its divisors is an integer number (7485842).

Almost surely, 2^99947115 is an apocalyptic number.

99947115 is a deficient number, since it is larger than the sum of its proper divisors (79713093).

99947115 is an equidigital number, since it uses as much as digits as its factorization.

99947115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82281 (or 82269 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 99947115 is about 9997.3554003046. The cubic root of 99947115 is about 464.0770454578.

The spelling of 99947115 in words is "ninety-nine million, nine hundred forty-seven thousand, one hundred fifteen".