99685404 has 288 divisors, whose sum is σ = 342451200. Its totient is φ = 25147584.

The previous prime is 99685393. The next prime is 99685451. The reversal of 99685404 is 40458699.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 99685404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4334137 + ... + 4334159.

Almost surely, 2^99685404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99685404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171225600).

99685404 is an abundant number, since it is smaller than the sum of its proper divisors (242765796).

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

99685404 is a wasteful number, since it uses less digits than its factorization.

99685404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 99685404 is about 9984.2578091714. The cubic root of 99685404 is about 463.6716302837.

The spelling of 99685404 in words is "ninety-nine million, six hundred eighty-five thousand, four hundred four".