865877534 has 16 divisors (see below), whose sum is σ = 1356657120. Its totient is φ = 413948640.

The previous prime is 865877531. The next prime is 865877539. The reversal of 865877534 is 435778568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865877531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66497 + ... + 78444.

It is an arithmetic number, because the mean of its divisors is an integer number (84791070).

Almost surely, 2^865877534 is an apocalyptic number.

865877534 is a deficient number, since it is larger than the sum of its proper divisors (490779586).

865877534 is a wasteful number, since it uses less digits than its factorization.

865877534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145075.

The product of its digits is 5644800, while the sum is 53.

The square root of 865877534 is about 29425.7970835116. The cubic root of 865877534 is about 953.1300393234.

The spelling of 865877534 in words is "eight hundred sixty-five million, eight hundred seventy-seven thousand, five hundred thirty-four".