83216633 has 4 divisors (see below), whose sum is σ = 83697828. Its totient is φ = 82735440.

The previous prime is 83216629. The next prime is 83216657. The reversal of 83216633 is 33661238.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66797929 + 16418704 = 8173^2 + 4052^2 .

It is a cyclic number.

It is not a de Polignac number, because 83216633 - 2² = 83216629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83216633.

It is not an unprimeable number, because it can be changed into a prime (83216603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240338 + ... + 240683.

It is an arithmetic number, because the mean of its divisors is an integer number (20924457).

Almost surely, 2^83216633 is an apocalyptic number.

It is an amenable number.

83216633 is a deficient number, since it is larger than the sum of its proper divisors (481195).

83216633 is a wasteful number, since it uses less digits than its factorization.

83216633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481194.

The product of its digits is 15552, while the sum is 32.

The square root of 83216633 is about 9122.3151118562. The cubic root of 83216633 is about 436.5862428531.

The spelling of 83216633 in words is "eighty-three million, two hundred sixteen thousand, six hundred thirty-three".