85280078 has 8 divisors (see below), whose sum is σ = 137760168. Its totient is φ = 39360024.

The previous prime is 85280077. The next prime is 85280087. The reversal of 85280078 is 87008258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85280071) 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, 1639976 + ... + 1640027.

It is an arithmetic number, because the mean of its divisors is an integer number (17220021).

Almost surely, 2^85280078 is an apocalyptic number.

85280078 is a deficient number, since it is larger than the sum of its proper divisors (52480090).

85280078 is a wasteful number, since it uses less digits than its factorization.

85280078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280018.

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 85280078 is about 9234.7213276850. The cubic root of 85280078 is about 440.1653613996.

The spelling of 85280078 in words is "eighty-five million, two hundred eighty thousand, seventy-eight".