85465777 has 4 divisors (see below), whose sum is σ = 85839220. Its totient is φ = 85092336.

The previous prime is 85465759. The next prime is 85465789. The reversal of 85465777 is 77756458.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78304801 + 7160976 = 8849^2 + 2676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85465777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85465777.

It is not an unprimeable number, because it can be changed into a prime (85465577) 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, 186378 + ... + 186835.

It is an arithmetic number, because the mean of its divisors is an integer number (21459805).

Almost surely, 2^85465777 is an apocalyptic number.

It is an amenable number.

85465777 is a deficient number, since it is larger than the sum of its proper divisors (373443).

85465777 is a wasteful number, since it uses less digits than its factorization.

85465777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373442.

The product of its digits is 1646400, while the sum is 49.

The square root of 85465777 is about 9244.7702513367. The cubic root of 85465777 is about 440.4846192777.

The spelling of 85465777 in words is "eighty-five million, four hundred sixty-five thousand, seven hundred seventy-seven".