85727761 has 16 divisors (see below), whose sum is σ = 100816128. Its totient is φ = 71366400.

The previous prime is 85727749. The next prime is 85727771. The reversal of 85727761 is 16772758.

It is not a de Polignac number, because 85727761 - 2⁵ = 85727729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85727771) 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, 80116 + ... + 81178.

It is an arithmetic number, because the mean of its divisors is an integer number (6301008).

Almost surely, 2^85727761 is an apocalyptic number.

It is an amenable number.

85727761 is a deficient number, since it is larger than the sum of its proper divisors (15088367).

85727761 is a wasteful number, since it uses less digits than its factorization.

85727761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392.

The product of its digits is 164640, while the sum is 43.

The square root of 85727761 is about 9258.9287177297. The cubic root of 85727761 is about 440.9342425560.

The spelling of 85727761 in words is "eighty-five million, seven hundred twenty-seven thousand, seven hundred sixty-one".