83861010 has 24 divisors (see below), whose sum is σ = 218038860. Its totient is φ = 22362912.

The previous prime is 83860993. The next prime is 83861023. The reversal of 83861010 is 1016838.

83861010 is a `hidden beast` number, since 8 + 38 + 610 + 10 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 83119689 + 741321 = 9117^2 + 861^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 465805 + ... + 465984.

Almost surely, 2^83861010 is an apocalyptic number.

83861010 is an abundant number, since it is smaller than the sum of its proper divisors (134177850).

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

83861010 is a wasteful number, since it uses less digits than its factorization.

83861010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931802 (or 931799 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 83861010 is about 9157.5657245799. The cubic root of 83861010 is about 437.7102293037.

Adding to 83861010 its reverse (1016838), we get a palindrome (84877848).

The spelling of 83861010 in words is "eighty-three million, eight hundred sixty-one thousand, ten".