85784532 has 24 divisors (see below), whose sum is σ = 201067776. Its totient is φ = 28465728.

The previous prime is 85784513. The next prime is 85784539. The reversal of 85784532 is 23548758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85784539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13353 + ... + 18704.

It is an arithmetic number, because the mean of its divisors is an integer number (8377824).

Almost surely, 2^85784532 is an apocalyptic number.

It is an amenable number.

85784532 is an abundant number, since it is smaller than the sum of its proper divisors (115283244).

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

85784532 is a wasteful number, since it uses less digits than its factorization.

85784532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32287 (or 32285 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 85784532 is about 9261.9939537877. The cubic root of 85784532 is about 441.0315535241.

The spelling of 85784532 in words is "eighty-five million, seven hundred eighty-four thousand, five hundred thirty-two".