85380784 has 20 divisors (see below), whose sum is σ = 172618416. Its totient is φ = 40834112.

The previous prime is 85380781. The next prime is 85380791. The reversal of 85380784 is 48708358.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 85380784.

It is not an unprimeable number, because it can be changed into a prime (85380781) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 115639 + ... + 116374.

Almost surely, 2^85380784 is an apocalyptic number.

It is an amenable number.

85380784 is an abundant number, since it is smaller than the sum of its proper divisors (87237632).

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

85380784 is a wasteful number, since it uses less digits than its factorization.

85380784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232044 (or 232038 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 85380784 is about 9240.1722927660. The cubic root of 85380784 is about 440.3385548616.

The spelling of 85380784 in words is "eighty-five million, three hundred eighty thousand, seven hundred eighty-four".