80683785 has 192 divisors, whose sum is σ = 194987520. Its totient is φ = 29859840.

The previous prime is 80683763. The next prime is 80683787. The reversal of 80683785 is 58738608.

It is not a de Polignac number, because 80683785 - 2⁵ = 80683753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 80683785.

It is not an unprimeable number, because it can be changed into a prime (80683787) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1322655 + ... + 1322715.

It is an arithmetic number, because the mean of its divisors is an integer number (1015560).

Almost surely, 2^80683785 is an apocalyptic number.

80683785 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

80683785 is an abundant number, since it is smaller than the sum of its proper divisors (114303735).

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

80683785 is a wasteful number, since it uses less digits than its factorization.

80683785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 80683785 is about 8982.4153210593. The cubic root of 80683785 is about 432.1110986122. Note that the first 3 decimals are identical.

It can be divided in two parts, 80 and 683785, that added together give a triangular number (683865 = T₁₁₆₉).

The spelling of 80683785 in words is "eighty million, six hundred eighty-three thousand, seven hundred eighty-five".