827878534 has 32 divisors (see below), whose sum is σ = 1441981440. Its totient is φ = 349153728.

The previous prime is 827878523. The next prime is 827878543. The reversal of 827878534 is 435878728.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 281379 + ... + 284305.

It is an arithmetic number, because the mean of its divisors is an integer number (45061920).

Almost surely, 2^827878534 is an apocalyptic number.

827878534 is a deficient number, since it is larger than the sum of its proper divisors (614102906).

827878534 is a wasteful number, since it uses less digits than its factorization.

827878534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252.

The product of its digits is 3010560, while the sum is 52.

The square root of 827878534 is about 28772.8784448133. The cubic root of 827878534 is about 938.9782673769.

The spelling of 827878534 in words is "eight hundred twenty-seven million, eight hundred seventy-eight thousand, five hundred thirty-four".