85727280 has 40 divisors (see below), whose sum is σ = 265755312. Its totient is φ = 22860544.

The previous prime is 85727267. The next prime is 85727281. The reversal of 85727280 is 8272758.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (85727281) 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, 178359 + ... + 178838.

Almost surely, 2^85727280 is an apocalyptic number.

85727280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85727280 is an abundant number, since it is smaller than the sum of its proper divisors (180028032).

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

85727280 is a wasteful number, since it uses less digits than its factorization.

85727280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357213 (or 357207 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 85727280 is about 9258.9027427660. The cubic root of 85727280 is about 440.9334178921.

The spelling of 85727280 in words is "eighty-five million, seven hundred twenty-seven thousand, two hundred eighty".