83220064 has 12 divisors (see below), whose sum is σ = 163839564. Its totient is φ = 41610016.

The previous prime is 83220047. The next prime is 83220079. The reversal of 83220064 is 46002238.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300282 + ... + 1300345.

It is an arithmetic number, because the mean of its divisors is an integer number (13653297).

Almost surely, 2^83220064 is an apocalyptic number.

It is an amenable number.

83220064 is a deficient number, since it is larger than the sum of its proper divisors (80619500).

83220064 is a wasteful number, since it uses less digits than its factorization.

83220064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600637 (or 2600629 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 83220064 is about 9122.5031652502. The cubic root of 83220064 is about 436.5922428828.

The spelling of 83220064 in words is "eighty-three million, two hundred twenty thousand, sixty-four".