83220850 has 12 divisors (see below), whose sum is σ = 154790874. Its totient is φ = 33288320.

The previous prime is 83220811. The next prime is 83220853. The reversal of 83220850 is 5802238.

It can be written as a sum of positive squares in 3 ways, for example, as 65302561 + 17918289 = 8081^2 + 4233^2 .

It is not an unprimeable number, because it can be changed into a prime (83220853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 832159 + ... + 832258.

Almost surely, 2^83220850 is an apocalyptic number.

83220850 is a deficient number, since it is larger than the sum of its proper divisors (71570024).

83220850 is a wasteful number, since it uses less digits than its factorization.

83220850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664429 (or 1664424 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 83220850 is about 9122.5462454295. The cubic root of 83220850 is about 436.5936173927.

The spelling of 83220850 in words is "eighty-three million, two hundred twenty thousand, eight hundred fifty".