83217950 has 48 divisors (see below), whose sum is σ = 162953856. Its totient is φ = 31574400.

The previous prime is 83217931. The next prime is 83217961. The reversal of 83217950 is 5971238.

It is a self number, because there is not a number n which added to its sum of digits gives 83217950.

It is a congruent number.

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, 81644 + ... + 82656.

It is an arithmetic number, because the mean of its divisors is an integer number (3394872).

Almost surely, 2^83217950 is an apocalyptic number.

83217950 is a deficient number, since it is larger than the sum of its proper divisors (79735906).

83217950 is a wasteful number, since it uses less digits than its factorization.

83217950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1104 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 83217950 is about 9122.3872971936. The cubic root of 83217950 is about 436.5885460026.

The spelling of 83217950 in words is "eighty-three million, two hundred seventeen thousand, nine hundred fifty".