99415559 has 4 divisors (see below), whose sum is σ = 102102504. Its totient is φ = 96728616.

The previous prime is 99415489. The next prime is 99415573. The reversal of 99415559 is 95551499.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99415559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99415579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343417 + ... + 1343490.

It is an arithmetic number, because the mean of its divisors is an integer number (25525626).

Almost surely, 2^99415559 is an apocalyptic number.

99415559 is a deficient number, since it is larger than the sum of its proper divisors (2686945).

99415559 is a wasteful number, since it uses less digits than its factorization.

99415559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686944.

The product of its digits is 364500, while the sum is 47.

The square root of 99415559 is about 9970.7351283644. The cubic root of 99415559 is about 463.2528710866.

The spelling of 99415559 in words is "ninety-nine million, four hundred fifteen thousand, five hundred fifty-nine".