85427140 has 12 divisors (see below), whose sum is σ = 179397036. Its totient is φ = 34170848.

The previous prime is 85427101. The next prime is 85427161. The reversal of 85427140 is 4172458.

It can be written as a sum of positive squares in 2 ways, for example, as 60186564 + 25240576 = 7758^2 + 5024^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135659 + ... + 2135698.

It is an arithmetic number, because the mean of its divisors is an integer number (14949753).

Almost surely, 2^85427140 is an apocalyptic number.

It is an amenable number.

85427140 is an abundant number, since it is smaller than the sum of its proper divisors (93969896).

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

85427140 is a wasteful number, since it uses less digits than its factorization.

85427140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271366 (or 4271364 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 85427140 is about 9242.6803471720. The cubic root of 85427140 is about 440.4182318101.

Adding to 85427140 its reverse (4172458), we get a palindrome (89599598).

The spelling of 85427140 in words is "eighty-five million, four hundred twenty-seven thousand, one hundred forty".