83220572 has 12 divisors (see below), whose sum is σ = 145936056. Its totient is φ = 41524560.

The previous prime is 83220569. The next prime is 83220619. The reversal of 83220572 is 27502238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19223 + ... + 23150.

It is an arithmetic number, because the mean of its divisors is an integer number (12161338).

Almost surely, 2^83220572 is an apocalyptic number.

It is an amenable number.

83220572 is a deficient number, since it is larger than the sum of its proper divisors (62715484).

83220572 is a wasteful number, since it uses less digits than its factorization.

83220572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42868 (or 42866 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 83220572 is about 9122.5310084428. The cubic root of 83220572 is about 436.5931312439.

The spelling of 83220572 in words is "eighty-three million, two hundred twenty thousand, five hundred seventy-two".