85853957 has 4 divisors (see below), whose sum is σ = 98118816. Its totient is φ = 73589100.

The previous prime is 85853923. The next prime is 85853969. The reversal of 85853957 is 75935858.

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: 75935858 = 2 ⋅37967929.

It is a cyclic number.

It is not a de Polignac number, because 85853957 - 2⁸ = 85853701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85853857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6132419 + ... + 6132432.

It is an arithmetic number, because the mean of its divisors is an integer number (24529704).

Almost surely, 2^85853957 is an apocalyptic number.

It is an amenable number.

85853957 is a deficient number, since it is larger than the sum of its proper divisors (12264859).

85853957 is a wasteful number, since it uses less digits than its factorization.

85853957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12264858.

The product of its digits is 1512000, while the sum is 50.

The square root of 85853957 is about 9265.7410389024. The cubic root of 85853957 is about 441.1504963326.

The spelling of 85853957 in words is "eighty-five million, eight hundred fifty-three thousand, nine hundred fifty-seven".