99415905 has 8 divisors (see below), whose sum is σ = 159065472. Its totient is φ = 53021808.

The previous prime is 99415889. The next prime is 99415907. The reversal of 99415905 is 50951499.

It is a happy number.

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

It is not a de Polignac number, because 99415905 - 2⁴ = 99415889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99415907) 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 7 ways as a sum of consecutive naturals, for example, 3313849 + ... + 3313878.

It is an arithmetic number, because the mean of its divisors is an integer number (19883184).

Almost surely, 2^99415905 is an apocalyptic number.

It is an amenable number.

99415905 is a deficient number, since it is larger than the sum of its proper divisors (59649567).

99415905 is a wasteful number, since it uses less digits than its factorization.

99415905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6627735.

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 99415905 is about 9970.7524791261. The cubic root of 99415905 is about 463.2534085119.

The spelling of 99415905 in words is "ninety-nine million, four hundred fifteen thousand, nine hundred five".