85645277 has 8 divisors (see below), whose sum is σ = 86760576. Its totient is φ = 84534912.

The previous prime is 85645271. The next prime is 85645309. The reversal of 85645277 is 77254658.

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 85645277 - 2¹⁰ = 85644253 is a prime.

It is a super-2 number, since 2×85645277² = 14670226944813458, 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 (85645271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43958 + ... + 45864.

It is an arithmetic number, because the mean of its divisors is an integer number (10845072).

Almost surely, 2^85645277 is an apocalyptic number.

It is an amenable number.

85645277 is a deficient number, since it is larger than the sum of its proper divisors (1115299).

85645277 is a wasteful number, since it uses less digits than its factorization.

85645277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467.

The product of its digits is 470400, while the sum is 44.

The square root of 85645277 is about 9254.4733507639. The cubic root of 85645277 is about 440.7927804419.

The spelling of 85645277 in words is "eighty-five million, six hundred forty-five thousand, two hundred seventy-seven".