85270866 has 32 divisors (see below), whose sum is σ = 176931648. Its totient is φ = 27374400.

The previous prime is 85270771. The next prime is 85270873. The reversal of 85270866 is 66807258.

It is a super-2 number, since 2×85270866² = 14542241176779912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20521 + ... + 24323.

It is an arithmetic number, because the mean of its divisors is an integer number (5529114).

Almost surely, 2^85270866 is an apocalyptic number.

85270866 is an abundant number, since it is smaller than the sum of its proper divisors (91660782).

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

85270866 is a wasteful number, since it uses less digits than its factorization.

85270866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 85270866 is about 9234.2225444268. Note that the first 3 decimals coincide. The cubic root of 85270866 is about 440.1495118623.

The spelling of 85270866 in words is "eighty-five million, two hundred seventy thousand, eight hundred sixty-six".