85765851 has 8 divisors (see below), whose sum is σ = 127060560. Its totient is φ = 57177216.

The previous prime is 85765843. The next prime is 85765859. The reversal of 85765851 is 15856758.

It is an interprime number because it is at equal distance from previous prime (85765843) and next prime (85765859).

It is not a de Polignac number, because 85765851 - 2³ = 85765843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85765797 and 85765806.

It is not an unprimeable number, because it can be changed into a prime (85765859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1588230 + ... + 1588283.

It is an arithmetic number, because the mean of its divisors is an integer number (15882570).

Almost surely, 2^85765851 is an apocalyptic number.

85765851 is a deficient number, since it is larger than the sum of its proper divisors (41294709).

85765851 is a wasteful number, since it uses less digits than its factorization.

85765851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176522 (or 3176516 counting only the distinct ones).

The product of its digits is 336000, while the sum is 45.

The square root of 85765851 is about 9260.9854227291. The cubic root of 85765851 is about 440.9995372294. Note that the first 3 decimals are identical.

The spelling of 85765851 in words is "eighty-five million, seven hundred sixty-five thousand, eight hundred fifty-one".