873321001 has 4 divisors (see below), whose sum is σ = 998081152. Its totient is φ = 748560852.

The previous prime is 873320999. The next prime is 873321023. The reversal of 873321001 is 100123378.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100123378 = 2 ⋅50061689.

It is a cyclic number.

It is not a de Polignac number, because 873321001 - 2¹ = 873320999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (873321061) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 62380065 + ... + 62380078.

It is an arithmetic number, because the mean of its divisors is an integer number (249520288).

Almost surely, 2^873321001 is an apocalyptic number.

It is an amenable number.

873321001 is a deficient number, since it is larger than the sum of its proper divisors (124760151).

873321001 is a wasteful number, since it uses less digits than its factorization.

873321001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124760150.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 873321001 is about 29552.0050250402. The cubic root of 873321001 is about 955.8534264207.

Adding to 873321001 its reverse (100123378), we get a palindrome (973444379).

The spelling of 873321001 in words is "eight hundred seventy-three million, three hundred twenty-one thousand, one".