87822002831 has 4 divisors (see below), whose sum is σ = 87924960312. Its totient is φ = 87719045352.

The previous prime is 87822002819. The next prime is 87822002897. The reversal of 87822002831 is 13820022878.

It is a happy number.

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 87822002831 - 2¹⁰ = 87822001807 is a prime.

It is a super-2 number, since 2×87822002831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87822002231) 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, 51477461 + ... + 51479166.

It is an arithmetic number, because the mean of its divisors is an integer number (21981240078).

Almost surely, 2^87822002831 is an apocalyptic number.

87822002831 is a deficient number, since it is larger than the sum of its proper divisors (102957481).

87822002831 is a wasteful number, since it uses less digits than its factorization.

87822002831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102957480.

The product of its (nonzero) digits is 86016, while the sum is 41.

The spelling of 87822002831 in words is "eighty-seven billion, eight hundred twenty-two million, two thousand, eight hundred thirty-one".