86581010 has 8 divisors (see below), whose sum is σ = 155845836. Its totient is φ = 34632400.

The previous prime is 86581009. The next prime is 86581013. The reversal of 86581010 is 1018568.

It can be written as a sum of positive squares in 2 ways, for example, as 85729081 + 851929 = 9259^2 + 923^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (86581013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4329041 + ... + 4329060.

Almost surely, 2^86581010 is an apocalyptic number.

86581010 is a deficient number, since it is larger than the sum of its proper divisors (69264826).

86581010 is a wasteful number, since it uses less digits than its factorization.

86581010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8658108.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 86581010 is about 9304.8917242491. The cubic root of 86581010 is about 442.3922897426.

Adding to 86581010 its reverse (1018568), we get a palindrome (87599578).

The spelling of 86581010 in words is "eighty-six million, five hundred eighty-one thousand, ten".