86819053 has 4 divisors (see below), whose sum is σ = 87069600. Its totient is φ = 86568508.

The previous prime is 86819039. The next prime is 86819059. The reversal of 86819053 is 35091868.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86819053 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86818997 and 86819015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86819059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124753 + ... + 125446.

It is an arithmetic number, because the mean of its divisors is an integer number (21767400).

Almost surely, 2^86819053 is an apocalyptic number.

It is an amenable number.

86819053 is a deficient number, since it is larger than the sum of its proper divisors (250547).

86819053 is a wasteful number, since it uses less digits than its factorization.

86819053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250546.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 86819053 is about 9317.6742269732. The cubic root of 86819053 is about 442.7973517167.

The spelling of 86819053 in words is "eighty-six million, eight hundred nineteen thousand, fifty-three".