862874813 has 4 divisors (see below), whose sum is σ = 862989600. Its totient is φ = 862760028.

The previous prime is 862874791. The next prime is 862874827. The reversal of 862874813 is 318478268.

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 not a de Polignac number, because 862874813 - 2¹⁰ = 862873789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (862874213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45263 + ... + 61436.

It is an arithmetic number, because the mean of its divisors is an integer number (215747400).

Almost surely, 2^862874813 is an apocalyptic number.

It is an amenable number.

862874813 is a deficient number, since it is larger than the sum of its proper divisors (114787).

862874813 is a wasteful number, since it uses less digits than its factorization.

862874813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114786.

The product of its digits is 516096, while the sum is 47.

The square root of 862874813 is about 29374.7308583415. The cubic root of 862874813 is about 952.0269971659.

The spelling of 862874813 in words is "eight hundred sixty-two million, eight hundred seventy-four thousand, eight hundred thirteen".