99999415 has 8 divisors (see below), whose sum is σ = 121643568. Its totient is φ = 78903360.

The previous prime is 99999401. The next prime is 99999437. The reversal of 99999415 is 51499999.

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

It is not a de Polignac number, because 99999415 - 2¹¹ = 99997367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136621 + ... + 137350.

It is an arithmetic number, because the mean of its divisors is an integer number (15205446).

Almost surely, 2^99999415 is an apocalyptic number.

99999415 is a deficient number, since it is larger than the sum of its proper divisors (21644153).

99999415 is a wasteful number, since it uses less digits than its factorization.

99999415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274049.

The product of its digits is 1180980, while the sum is 55.

The square root of 99999415 is about 9999.9707499572. The cubic root of 99999415 is about 464.1579782497.

The spelling of 99999415 in words is "ninety-nine million, nine hundred ninety-nine thousand, four hundred fifteen".