83021616 has 30 divisors (see below), whose sum is σ = 232345620. Its totient is φ = 27673824.

The previous prime is 83021611. The next prime is 83021633. The reversal of 83021616 is 61612038.

It is a self number, because there is not a number n which added to its sum of digits gives 83021616.

It is not an unprimeable number, because it can be changed into a prime (83021611) 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, 288126 + ... + 288413.

It is an arithmetic number, because the mean of its divisors is an integer number (7744854).

Almost surely, 2^83021616 is an apocalyptic number.

It is an amenable number.

83021616 is an abundant number, since it is smaller than the sum of its proper divisors (149324004).

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

83021616 is a wasteful number, since it uses less digits than its factorization.

83021616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576553 (or 576544 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 83021616 is about 9111.6198340361. The cubic root of 83021616 is about 436.2449315372.

The spelling of 83021616 in words is "eighty-three million, twenty-one thousand, six hundred sixteen".