85377187 has 8 divisors (see below), whose sum is σ = 97637472. Its totient is φ = 73132800.

The previous prime is 85377181. The next prime is 85377209. The reversal of 85377187 is 78177358.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85377187 - 2²³ = 76988579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85377181) 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 7 ways as a sum of consecutive naturals, for example, 11637 + ... + 17497.

It is an arithmetic number, because the mean of its divisors is an integer number (12204684).

Almost surely, 2^85377187 is an apocalyptic number.

85377187 is a deficient number, since it is larger than the sum of its proper divisors (12260285).

85377187 is a wasteful number, since it uses less digits than its factorization.

85377187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7949.

The product of its digits is 329280, while the sum is 46.

The square root of 85377187 is about 9239.9776514881. The cubic root of 85377187 is about 440.3323711125.

The spelling of 85377187 in words is "eighty-five million, three hundred seventy-seven thousand, one hundred eighty-seven".