99986250 has 160 divisors (see below), whose sum is σ = 308601216. Its totient is φ = 21024000.

The previous prime is 99986233. The next prime is 99986251. The reversal of 99986250 is 5268999.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99986250.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99986251) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 341104 + ... + 341396.

Almost surely, 2^99986250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99986250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154300608).

99986250 is an abundant number, since it is smaller than the sum of its proper divisors (208614966).

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

99986250 is a wasteful number, since it uses less digits than its factorization.

99986250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 99986250 is about 9999.3124763656. The cubic root of 99986250 is about 464.1376084373.

The spelling of 99986250 in words is "ninety-nine million, nine hundred eighty-six thousand, two hundred fifty".