86775851 has 4 divisors (see below), whose sum is σ = 89575104. Its totient is φ = 83976600.

The previous prime is 86775827. The next prime is 86775877. The reversal of 86775851 is 15857768.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86775851 - 2¹⁴ = 86759467 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86775796 and 86775805.

It is not an unprimeable number, because it can be changed into a prime (86775551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399580 + ... + 1399641.

It is an arithmetic number, because the mean of its divisors is an integer number (22393776).

Almost surely, 2^86775851 is an apocalyptic number.

86775851 is a deficient number, since it is larger than the sum of its proper divisors (2799253).

86775851 is a wasteful number, since it uses less digits than its factorization.

86775851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799252.

The product of its digits is 470400, while the sum is 47.

The square root of 86775851 is about 9315.3556561196. The cubic root of 86775851 is about 442.7238927833.

The spelling of 86775851 in words is "eighty-six million, seven hundred seventy-five thousand, eight hundred fifty-one".