83815628 has 24 divisors (see below), whose sum is σ = 158350752. Its totient is φ = 38588544.

The previous prime is 83815621. The next prime is 83815637. The reversal of 83815628 is 82651838.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (83815621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22001 + ... + 25527.

It is an arithmetic number, because the mean of its divisors is an integer number (6597948).

Almost surely, 2^83815628 is an apocalyptic number.

It is an amenable number.

83815628 is a deficient number, since it is larger than the sum of its proper divisors (74535124).

83815628 is a wasteful number, since it uses less digits than its factorization.

83815628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001 (or 3999 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 83815628 is about 9155.0875473695. The cubic root of 83815628 is about 437.6312583575.

The spelling of 83815628 in words is "eighty-three million, eight hundred fifteen thousand, six hundred twenty-eight".