83816772 has 24 divisors (see below), whose sum is σ = 210616896. Its totient is φ = 25789728.

The previous prime is 83816753. The next prime is 83816773. The reversal of 83816772 is 27761838.

It is not an unprimeable number, because it can be changed into a prime (83816773) 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, 268488 + ... + 268799.

It is an arithmetic number, because the mean of its divisors is an integer number (8775704).

Almost surely, 2^83816772 is an apocalyptic number.

It is an amenable number.

83816772 is an abundant number, since it is smaller than the sum of its proper divisors (126800124).

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

83816772 is a wasteful number, since it uses less digits than its factorization.

83816772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537307 (or 537305 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 83816772 is about 9155.1500260782. The cubic root of 83816772 is about 437.6332494257.

The spelling of 83816772 in words is "eighty-three million, eight hundred sixteen thousand, seven hundred seventy-two".