85320427 has 4 divisors (see below), whose sum is σ = 85422960. Its totient is φ = 85217896.

The previous prime is 85320421. The next prime is 85320437. The reversal of 85320427 is 72402358.

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 85320427 - 2³ = 85320419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85320421) 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, 50008 + ... + 51685.

It is an arithmetic number, because the mean of its divisors is an integer number (21355740).

Almost surely, 2^85320427 is an apocalyptic number.

85320427 is a deficient number, since it is larger than the sum of its proper divisors (102533).

85320427 is a wasteful number, since it uses less digits than its factorization.

85320427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102532.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 85320427 is about 9236.9057048343. The cubic root of 85320427 is about 440.2347696847.

The spelling of 85320427 in words is "eighty-five million, three hundred twenty thousand, four hundred twenty-seven".