85780832 has 24 divisors (see below), whose sum is σ = 170921016. Its totient is φ = 42372352.

The previous prime is 85780831. The next prime is 85780841. The reversal of 85780832 is 23808758.

It is a super-2 number, since 2×85780832² = 14716702277224448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85780832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85780831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13493 + ... + 18804.

It is an arithmetic number, because the mean of its divisors is an integer number (7121709).

Almost surely, 2^85780832 is an apocalyptic number.

It is an amenable number.

85780832 is a deficient number, since it is larger than the sum of its proper divisors (85140184).

85780832 is a wasteful number, since it uses less digits than its factorization.

85780832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32390 (or 32382 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 85780832 is about 9261.7942106268. The cubic root of 85780832 is about 441.0252126754.

The spelling of 85780832 in words is "eighty-five million, seven hundred eighty thousand, eight hundred thirty-two".