86251630 has 32 divisors (see below), whose sum is σ = 158047200. Its totient is φ = 33886080.

The previous prime is 86251609. The next prime is 86251637. The reversal of 86251630 is 3615268.

It is a junction number, because it is equal to n+sod(n) for n = 86251592 and 86251601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86251637) 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 15 ways as a sum of consecutive naturals, for example, 159160 + ... + 159700.

It is an arithmetic number, because the mean of its divisors is an integer number (4938975).

Almost surely, 2^86251630 is an apocalyptic number.

86251630 is a deficient number, since it is larger than the sum of its proper divisors (71795570).

86251630 is a wasteful number, since it uses less digits than its factorization.

86251630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 86251630 is about 9287.1755663388. The cubic root of 86251630 is about 441.8305794043.

Adding to 86251630 its reverse (3615268), we get a palindrome (89866898).

The spelling of 86251630 in words is "eighty-six million, two hundred fifty-one thousand, six hundred thirty".