85278611 has 4 divisors (see below), whose sum is σ = 93031224. Its totient is φ = 77526000.

The previous prime is 85278607. The next prime is 85278619. The reversal of 85278611 is 11687258.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85278611 - 2² = 85278607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85278619) 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, 3876290 + ... + 3876311.

It is an arithmetic number, because the mean of its divisors is an integer number (23257806).

Almost surely, 2^85278611 is an apocalyptic number.

85278611 is a deficient number, since it is larger than the sum of its proper divisors (7752613).

85278611 is a wasteful number, since it uses less digits than its factorization.

85278611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7752612.

The product of its digits is 26880, while the sum is 38.

The square root of 85278611 is about 9234.6418988502. The cubic root of 85278611 is about 440.1628374561.

The spelling of 85278611 in words is "eighty-five million, two hundred seventy-eight thousand, six hundred eleven".