83563212 has 24 divisors (see below), whose sum is σ = 195616512. Its totient is φ = 27763600.

The previous prime is 83563201. The next prime is 83563213. The reversal of 83563212 is 21236538.

It is a self number, because there is not a number n which added to its sum of digits gives 83563212.

It is not an unprimeable number, because it can be changed into a prime (83563213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7464 + ... + 14927.

It is an arithmetic number, because the mean of its divisors is an integer number (8150688).

Almost surely, 2^83563212 is an apocalyptic number.

83563212 is the 7464-th pentagonal number.

It is an amenable number.

83563212 is an abundant number, since it is smaller than the sum of its proper divisors (112053300).

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

83563212 is a wasteful number, since it uses less digits than its factorization.

83563212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22709 (or 22707 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 83563212 is about 9141.2915936426. The cubic root of 83563212 is about 437.1914986487.

The spelling of 83563212 in words is "eighty-three million, five hundred sixty-three thousand, two hundred twelve".