99999436 has 6 divisors (see below), whose sum is σ = 174999020. Its totient is φ = 49999716.

The previous prime is 99999401. The next prime is 99999437. The reversal of 99999436 is 63499999.

It is not an unprimeable number, because it can be changed into a prime (99999437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12499926 + ... + 12499933.

Almost surely, 2^99999436 is an apocalyptic number.

It is an amenable number.

99999436 is a deficient number, since it is larger than the sum of its proper divisors (74999584).

99999436 is a wasteful number, since it uses less digits than its factorization.

99999436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24999863 (or 24999861 counting only the distinct ones).

The product of its digits is 4251528, while the sum is 58.

The square root of 99999436 is about 9999.9717999602. The cubic root of 99999436 is about 464.1580107409.

The spelling of 99999436 in words is "ninety-nine million, nine hundred ninety-nine thousand, four hundred thirty-six".