87082035721 has 8 divisors (see below), whose sum is σ = 89470220544. Its totient is φ = 84695672880.

The previous prime is 87082035701. The next prime is 87082035749. The reversal of 87082035721 is 12753028078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87082035721 - 2²³ = 87073647113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87082035701) 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, 358315 + ... + 550048.

It is an arithmetic number, because the mean of its divisors is an integer number (11183777568).

Almost surely, 2^87082035721 is an apocalyptic number.

It is an amenable number.

87082035721 is a deficient number, since it is larger than the sum of its proper divisors (2388184823).

87082035721 is a wasteful number, since it uses less digits than its factorization.

87082035721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910991.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 87082035721 in words is "eighty-seven billion, eighty-two million, thirty-five thousand, seven hundred twenty-one".