85577853 has 4 divisors (see below), whose sum is σ = 114103808. Its totient is φ = 57051900.

The previous prime is 85577839. The next prime is 85577857. The reversal of 85577853 is 35877558.

It is a happy number.

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 not a de Polignac number, because 85577853 - 2⁴ = 85577837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85577857) 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, 14262973 + ... + 14262978.

It is an arithmetic number, because the mean of its divisors is an integer number (28525952).

Almost surely, 2^85577853 is an apocalyptic number.

It is an amenable number.

85577853 is a deficient number, since it is larger than the sum of its proper divisors (28525955).

85577853 is a wasteful number, since it uses less digits than its factorization.

85577853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28525954.

The product of its digits is 1176000, while the sum is 48.

The square root of 85577853 is about 9250.8298546671. The cubic root of 85577853 is about 440.6770791217.

The spelling of 85577853 in words is "eighty-five million, five hundred seventy-seven thousand, eight hundred fifty-three".