85782380 has 12 divisors (see below), whose sum is σ = 180143040. Its totient is φ = 34312944.

The previous prime is 85782371. The next prime is 85782407. The reversal of 85782380 is 8328758.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144540 + ... + 2144579.

It is an arithmetic number, because the mean of its divisors is an integer number (15011920).

Almost surely, 2^85782380 is an apocalyptic number.

It is an amenable number.

85782380 is an abundant number, since it is smaller than the sum of its proper divisors (94360660).

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

85782380 is a wasteful number, since it uses less digits than its factorization.

85782380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289128 (or 4289126 counting only the distinct ones).

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

The square root of 85782380 is about 9261.8777793707. The cubic root of 85782380 is about 441.0278655716.

The spelling of 85782380 in words is "eighty-five million, seven hundred eighty-two thousand, three hundred eighty".