85004457 has 4 divisors (see below), whose sum is σ = 113339280. Its totient is φ = 56669636.

The previous prime is 85004453. The next prime is 85004483. The reversal of 85004457 is 75440058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85004457 - 2² = 85004453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85004453) 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, 14167407 + ... + 14167412.

It is an arithmetic number, because the mean of its divisors is an integer number (28334820).

Almost surely, 2^85004457 is an apocalyptic number.

It is an amenable number.

85004457 is a deficient number, since it is larger than the sum of its proper divisors (28334823).

85004457 is a wasteful number, since it uses less digits than its factorization.

85004457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28334822.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 85004457 is about 9219.7861688870. The cubic root of 85004457 is about 439.6906520501.

The spelling of 85004457 in words is "eighty-five million, four thousand, four hundred fifty-seven".