86664250 has 16 divisors (see below), whose sum is σ = 162235944. Its totient is φ = 34665600.

The previous prime is 86664239. The next prime is 86664257. The reversal of 86664250 is 5246668.

It can be written as a sum of positive squares in 4 ways, for example, as 33767721 + 52896529 = 5811^2 + 7273^2 .

It is not an unprimeable number, because it can be changed into a prime (86664257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173079 + ... + 173578.

Almost surely, 2^86664250 is an apocalyptic number.

86664250 is a deficient number, since it is larger than the sum of its proper divisors (75571694).

86664250 is a wasteful number, since it uses less digits than its factorization.

86664250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346674 (or 346664 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 86664250 is about 9309.3635657869. The cubic root of 86664250 is about 442.5340180472.

The spelling of 86664250 in words is "eighty-six million, six hundred sixty-four thousand, two hundred fifty".