872534011 has 4 divisors (see below), whose sum is σ = 874522000. Its totient is φ = 870546024.

The previous prime is 872534009. The next prime is 872534023. The reversal of 872534011 is 110435278.

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 872534011 - 2¹ = 872534009 is a prime.

It is a super-2 number, since 2×872534011² = 1522631200703496242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872538011) 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 3 ways as a sum of consecutive naturals, for example, 993336 + ... + 994213.

It is an arithmetic number, because the mean of its divisors is an integer number (218630500).

Almost surely, 2^872534011 is an apocalyptic number.

872534011 is a deficient number, since it is larger than the sum of its proper divisors (1987989).

872534011 is a wasteful number, since it uses less digits than its factorization.

872534011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987988.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 872534011 is about 29538.6866837373. The cubic root of 872534011 is about 955.5662188677.

Adding to 872534011 its reverse (110435278), we get a palindrome (982969289).

The spelling of 872534011 in words is "eight hundred seventy-two million, five hundred thirty-four thousand, eleven".