83861036 has 48 divisors (see below), whose sum is σ = 176795136. Its totient is φ = 34028544.

The previous prime is 83861023. The next prime is 83861039. The reversal of 83861036 is 63016838.

It is a happy number.

It is a super-3 number, since 3×83861036³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 83860987 and 83861005.

It is not an unprimeable number, because it can be changed into a prime (83861039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68300 + ... + 69516.

It is an arithmetic number, because the mean of its divisors is an integer number (3683232).

Almost surely, 2^83861036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83861036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88397568).

83861036 is an abundant number, since it is smaller than the sum of its proper divisors (92934100).

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

83861036 is a wasteful number, since it uses less digits than its factorization.

83861036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 83861036 is about 9157.5671441710. The cubic root of 83861036 is about 437.7102745391.

The spelling of 83861036 in words is "eighty-three million, eight hundred sixty-one thousand, thirty-six".