85276780 has 24 divisors (see below), whose sum is σ = 182019600. Its totient is φ = 33551040.

The previous prime is 85276747. The next prime is 85276781. The reversal of 85276780 is 8767258.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (85276781) 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, 33730 + ... + 36169.

It is an arithmetic number, because the mean of its divisors is an integer number (7584150).

Almost surely, 2^85276780 is an apocalyptic number.

It is an amenable number.

85276780 is an abundant number, since it is smaller than the sum of its proper divisors (96742820).

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

85276780 is a wasteful number, since it uses less digits than its factorization.

85276780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69969 (or 69967 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 85276780 is about 9234.5427607435. The cubic root of 85276780 is about 440.1596872175.

The spelling of 85276780 in words is "eighty-five million, two hundred seventy-six thousand, seven hundred eighty".