83239650 has 288 divisors, whose sum is σ = 272982528. Its totient is φ = 18662400.

The previous prime is 83239643. The next prime is 83239697. The reversal of 83239650 is 5693238.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2685135 + ... + 2685165.

It is an arithmetic number, because the mean of its divisors is an integer number (947856).

Almost surely, 2^83239650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83239650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136491264).

83239650 is an abundant number, since it is smaller than the sum of its proper divisors (189742878).

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

83239650 is a wasteful number, since it uses less digits than its factorization.

83239650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 83239650 is about 9123.5766013116. The cubic root of 83239650 is about 436.6264911338.

The spelling of 83239650 in words is "eighty-three million, two hundred thirty-nine thousand, six hundred fifty".