83117650 has 48 divisors (see below), whose sum is σ = 192755520. Its totient is φ = 25905600.

The previous prime is 83117627. The next prime is 83117669. The reversal of 83117650 is 5671138.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6945 + ... + 14644.

It is an arithmetic number, because the mean of its divisors is an integer number (4015740).

Almost surely, 2^83117650 is an apocalyptic number.

83117650 is an abundant number, since it is smaller than the sum of its proper divisors (109637870).

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

83117650 is a wasteful number, since it uses less digits than its factorization.

83117650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21619 (or 21614 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 83117650 is about 9116.8881752493. Note that the first 3 decimals coincide. The cubic root of 83117650 is about 436.4130732999.

Adding to 83117650 its reverse (5671138), we get a palindrome (88788788).

It can be divided in two parts, 831 and 17650, that added together give a palindrome (18481).

The spelling of 83117650 in words is "eighty-three million, one hundred seventeen thousand, six hundred fifty".