83736645 has 16 divisors (see below), whose sum is σ = 141860160. Its totient is φ = 42032384.

The previous prime is 83736599. The next prime is 83736647. The reversal of 83736645 is 54663738.

It is a cyclic number.

It is not a de Polignac number, because 83736645 - 2¹⁰ = 83735621 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83736597 and 83736606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83736647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163935 + ... + 164444.

It is an arithmetic number, because the mean of its divisors is an integer number (8866260).

Almost surely, 2^83736645 is an apocalyptic number.

83736645 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

83736645 is a deficient number, since it is larger than the sum of its proper divisors (58123515).

83736645 is a wasteful number, since it uses less digits than its factorization.

83736645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328404.

The product of its digits is 362880, while the sum is 42.

The square root of 83736645 is about 9150.7729181747. The cubic root of 83736645 is about 437.4937490263.

The spelling of 83736645 in words is "eighty-three million, seven hundred thirty-six thousand, six hundred forty-five".