85831877 has 4 divisors (see below), whose sum is σ = 86866080. Its totient is φ = 84797676.

The previous prime is 85831859. The next prime is 85831903. The reversal of 85831877 is 77813858.

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 85831877 - 2⁶ = 85831813 is a prime.

It is a super-2 number, since 2×85831877² = 14734222218686258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85831817) 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, 516977 + ... + 517142.

It is an arithmetic number, because the mean of its divisors is an integer number (21716520).

Almost surely, 2^85831877 is an apocalyptic number.

It is an amenable number.

85831877 is a deficient number, since it is larger than the sum of its proper divisors (1034203).

85831877 is a wasteful number, since it uses less digits than its factorization.

85831877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034202.

The product of its digits is 376320, while the sum is 47.

The square root of 85831877 is about 9264.5494763642. The cubic root of 85831877 is about 441.1126745926.

The spelling of 85831877 in words is "eighty-five million, eight hundred thirty-one thousand, eight hundred seventy-seven".