85477774 has 8 divisors (see below), whose sum is σ = 128256408. Its totient is φ = 42725640.

The previous prime is 85477759. The next prime is 85477783. The reversal of 85477774 is 47777458.

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

It is a congruent number.

It is an unprimeable number.

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, 7269 + ... + 14959.

It is an arithmetic number, because the mean of its divisors is an integer number (16032051).

Almost surely, 2^85477774 is an apocalyptic number.

85477774 is a deficient number, since it is larger than the sum of its proper divisors (42778634).

85477774 is a wasteful number, since it uses less digits than its factorization.

85477774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13250.

The product of its digits is 1536640, while the sum is 49.

The square root of 85477774 is about 9245.4190819021. The cubic root of 85477774 is about 440.5052288788.

The spelling of 85477774 in words is "eighty-five million, four hundred seventy-seven thousand, seven hundred seventy-four".