99999504 has 60 divisors (see below), whose sum is σ = 305306352. Its totient is φ = 30302400.

The previous prime is 99999481. The next prime is 99999509. The reversal of 99999504 is 40599999.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99999509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29982 + ... + 33149.

Almost surely, 2^99999504 is an apocalyptic number.

It is an amenable number.

99999504 is an abundant number, since it is smaller than the sum of its proper divisors (205306848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99999504 is a wasteful number, since it uses less digits than its factorization.

99999504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63156 (or 63147 counting only the distinct ones).

The product of its (nonzero) digits is 1180980, while the sum is 54.

The square root of 99999504 is about 9999.9751999692. The cubic root of 99999504 is about 464.1581159507.

It can be divided in two parts, 9999 and 9504, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 99999504 in words is "ninety-nine million, nine hundred ninety-nine thousand, five hundred four".