86297250 has 128 divisors (see below), whose sum is σ = 237758976. Its totient is φ = 20716800.

The previous prime is 86297231. The next prime is 86297257. The reversal of 86297250 is 5279268.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 86297199 and 86297208.

It is not an unprimeable number, because it can be changed into a prime (86297257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 516667 + ... + 516833.

It is an arithmetic number, because the mean of its divisors is an integer number (1857492).

Almost surely, 2^86297250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86297250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118879488).

86297250 is an abundant number, since it is smaller than the sum of its proper divisors (151461726).

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

86297250 is a wasteful number, since it uses less digits than its factorization.

86297250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 86297250 is about 9289.6313166885. The cubic root of 86297250 is about 441.9084629891.

The spelling of 86297250 in words is "eighty-six million, two hundred ninety-seven thousand, two hundred fifty".