99985930 has 24 divisors (see below), whose sum is σ = 197825796. Its totient is φ = 36358080.

The previous prime is 99985927. The next prime is 99985973. The reversal of 99985930 is 3958999.

It can be written as a sum of positive squares in 2 ways, for example, as 99980001 + 5929 = 9999^2 + 77^2 .

It is a zygodrome in base 4.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40107 + ... + 42526.

Almost surely, 2^99985930 is an apocalyptic number.

99985930 is a deficient number, since it is larger than the sum of its proper divisors (97839866).

99985930 is a wasteful number, since it uses less digits than its factorization.

99985930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82662 (or 82651 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 52.

The square root of 99985930 is about 9999.2964752526. The cubic root of 99985930 is about 464.1371132886.

The spelling of 99985930 in words is "ninety-nine million, nine hundred eighty-five thousand, nine hundred thirty".