85847057 has 4 divisors (see below), whose sum is σ = 85866480. Its totient is φ = 85827636.

The previous prime is 85847053. The next prime is 85847089. The reversal of 85847057 is 75074858.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75074858 = 2 ⋅37537429.

It is a cyclic number.

It is not a de Polignac number, because 85847057 - 2² = 85847053 is a prime.

It is a super-2 number, since 2×85847057² = 14739434391122498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85846999 and 85847017.

It is not an unprimeable number, because it can be changed into a prime (85847053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494 + ... + 13112.

It is an arithmetic number, because the mean of its divisors is an integer number (21466620).

Almost surely, 2^85847057 is an apocalyptic number.

It is an amenable number.

85847057 is a deficient number, since it is larger than the sum of its proper divisors (19423).

85847057 is a wasteful number, since it uses less digits than its factorization.

85847057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19422.

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 85847057 is about 9265.3686920705. The cubic root of 85847057 is about 441.1386777355.

The spelling of 85847057 in words is "eighty-five million, eight hundred forty-seven thousand, fifty-seven".