8981250 has 48 divisors (see below), whose sum is σ = 22498560. Its totient is φ = 2390000.

The previous prime is 8981249. The next prime is 8981251. The reversal of 8981250 is 521898.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8981249) and next prime (8981251).

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (8981251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18511 + ... + 18989.

It is an arithmetic number, because the mean of its divisors is an integer number (468720).

Almost surely, 2^8981250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8981250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11249280).

8981250 is an abundant number, since it is smaller than the sum of its proper divisors (13517310).

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

8981250 is an equidigital number, since it uses as much as digits as its factorization.

8981250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 8981250 is about 2996.8733706982. The cubic root of 8981250 is about 207.8638316108.

The spelling of 8981250 in words is "eight million, nine hundred eighty-one thousand, two hundred fifty".