99986140 has 12 divisors (see below), whose sum is σ = 209970936. Its totient is φ = 39994448.

The previous prime is 99986123. The next prime is 99986141. The reversal of 99986140 is 4168999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99986141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2499634 + ... + 2499673.

It is an arithmetic number, because the mean of its divisors is an integer number (17497578).

Almost surely, 2^99986140 is an apocalyptic number.

It is an amenable number.

99986140 is an abundant number, since it is smaller than the sum of its proper divisors (109984796).

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

99986140 is a wasteful number, since it uses less digits than its factorization.

99986140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999316 (or 4999314 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 99986140 is about 9999.3069759859. The cubic root of 99986140 is about 464.1374382301.

The spelling of 99986140 in words is "ninety-nine million, nine hundred eighty-six thousand, one hundred forty".