85776705 has 48 divisors (see below), whose sum is σ = 177402240. Its totient is φ = 39209184.

The previous prime is 85776673. The next prime is 85776731. The reversal of 85776705 is 50767758.

85776705 is a `hidden beast` number, since 8 + 577 + 6 + 70 + 5 = 666.

It is not a de Polignac number, because 85776705 - 2⁵ = 85776673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132 + ... + 13098.

It is an arithmetic number, because the mean of its divisors is an integer number (3695880).

Almost surely, 2^85776705 is an apocalyptic number.

It is an amenable number.

85776705 is an abundant number, since it is smaller than the sum of its proper divisors (91625535).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85776705 is a wasteful number, since it uses less digits than its factorization.

85776705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12995 (or 12982 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The square root of 85776705 is about 9261.5714109432. The cubic root of 85776705 is about 441.0181398434.

The spelling of 85776705 in words is "eighty-five million, seven hundred seventy-six thousand, seven hundred five".