85145677 has 16 divisors (see below), whose sum is σ = 88862400. Its totient is φ = 81544320.

The previous prime is 85145663. The next prime is 85145681. The reversal of 85145677 is 77654158.

It is a cyclic number.

It is not a de Polignac number, because 85145677 - 2⁷ = 85145549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85145377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649902 + ... + 650032.

It is an arithmetic number, because the mean of its divisors is an integer number (5553900).

Almost surely, 2^85145677 is an apocalyptic number.

It is an amenable number.

85145677 is a deficient number, since it is larger than the sum of its proper divisors (3716723).

85145677 is a wasteful number, since it uses less digits than its factorization.

85145677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396.

The product of its digits is 235200, while the sum is 43.

The square root of 85145677 is about 9227.4415197280. The cubic root of 85145677 is about 439.9340069759.

The spelling of 85145677 in words is "eighty-five million, one hundred forty-five thousand, six hundred seventy-seven".