85855377 has 4 divisors (see below), whose sum is σ = 114473840. Its totient is φ = 57236916.

The previous prime is 85855369. The next prime is 85855387. The reversal of 85855377 is 77355858.

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 85855377 - 2³ = 85855369 is a prime.

It is a super-2 number, since 2×85855377² = 14742291519624258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85855327) 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, 14309227 + ... + 14309232.

It is an arithmetic number, because the mean of its divisors is an integer number (28618460).

Almost surely, 2^85855377 is an apocalyptic number.

It is an amenable number.

85855377 is a deficient number, since it is larger than the sum of its proper divisors (28618463).

85855377 is a wasteful number, since it uses less digits than its factorization.

85855377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28618462.

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

The square root of 85855377 is about 9265.8176649446. The cubic root of 85855377 is about 441.1529284870.

The spelling of 85855377 in words is "eighty-five million, eight hundred fifty-five thousand, three hundred seventy-seven".