99999535 has 8 divisors (see below), whose sum is σ = 120056976. Its totient is φ = 79961280.

The previous prime is 99999517. The next prime is 99999539. The reversal of 99999535 is 53599999.

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 99999535 - 2¹³ = 99991343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99999535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99999539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12075 + ... + 18595.

It is an arithmetic number, because the mean of its divisors is an integer number (15007122).

Almost surely, 2^99999535 is an apocalyptic number.

99999535 is a deficient number, since it is larger than the sum of its proper divisors (20057441).

99999535 is a wasteful number, since it uses less digits than its factorization.

99999535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9593.

The product of its digits is 4428675, while the sum is 58.

The square root of 99999535 is about 9999.9767499730. The cubic root of 99999535 is about 464.1581639139.

The spelling of 99999535 in words is "ninety-nine million, nine hundred ninety-nine thousand, five hundred thirty-five".