83723616 has 36 divisors (see below), whose sum is σ = 238089852. Its totient is φ = 27907776.

The previous prime is 83723603. The next prime is 83723639. The reversal of 83723616 is 61632738.

It is a happy number.

83723616 is a `hidden beast` number, since 8 + 37 + 2 + 3 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×83723616² = 14019287752230912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145066 + ... + 145641.

It is an arithmetic number, because the mean of its divisors is an integer number (6613607).

Almost surely, 2^83723616 is an apocalyptic number.

It is an amenable number.

83723616 is an abundant number, since it is smaller than the sum of its proper divisors (154366236).

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

83723616 is a wasteful number, since it uses less digits than its factorization.

83723616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290723 (or 290712 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 83723616 is about 9150.0609834033. The cubic root of 83723616 is about 437.4710572418.

The spelling of 83723616 in words is "eighty-three million, seven hundred twenty-three thousand, six hundred sixteen".