83795985 has 128 divisors (see below), whose sum is σ = 193536000. Its totient is φ = 33405696.

The previous prime is 83795983. The next prime is 83796049. The reversal of 83795985 is 58959738.

It is not a de Polignac number, because 83795985 - 2¹ = 83795983 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83795983) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 233236 + ... + 233594.

It is an arithmetic number, because the mean of its divisors is an integer number (1512000).

Almost surely, 2^83795985 is an apocalyptic number.

It is an amenable number.

83795985 is an abundant number, since it is smaller than the sum of its proper divisors (109740015).

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

83795985 is a wasteful number, since it uses less digits than its factorization.

83795985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 406 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 83795985 is about 9154.0146930186. The cubic root of 83795985 is about 437.5970679858.

The spelling of 83795985 in words is "eighty-three million, seven hundred ninety-five thousand, nine hundred eighty-five".