872310001 has 4 divisors (see below), whose sum is σ = 923622372. Its totient is φ = 820997632.

The previous prime is 872309993. The next prime is 872310011. The reversal of 872310001 is 100013278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 520934976 + 351375025 = 22824^2 + 18745^2 .

It is a cyclic number.

It is not a de Polignac number, because 872310001 - 2³ = 872309993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872310011) 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, 25656160 + ... + 25656193.

It is an arithmetic number, because the mean of its divisors is an integer number (230905593).

Almost surely, 2^872310001 is an apocalyptic number.

It is an amenable number.

872310001 is a deficient number, since it is larger than the sum of its proper divisors (51312371).

872310001 is a wasteful number, since it uses less digits than its factorization.

872310001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51312370.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 872310001 is about 29534.8946332977. The cubic root of 872310001 is about 955.4844361112.

Adding to 872310001 its reverse (100013278), we get a palindrome (972323279).

The spelling of 872310001 in words is "eight hundred seventy-two million, three hundred ten thousand, one".