873143401 has 9 divisors (see below), whose sum is σ = 945890949. Its totient is φ = 805623936.

The previous prime is 873143389. The next prime is 873143413. The reversal of 873143401 is 104341378.

The square root of 873143401 is 29549.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (873143389) and next prime (873143413).

It can be written as a sum of positive squares in 4 ways, for example, as 2893401 + 870250000 = 1701^2 + 29500^2 .

It is a de Polignac number, because none of the positive numbers 2^k-873143401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (873143701) 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 8 ways as a sum of consecutive naturals, for example, 383001 + ... + 385273.

Almost surely, 2^873143401 is an apocalyptic number.

873143401 is the 29549-th square number.

873143401 is the 14775-th centered octagonal number.

It is an amenable number.

873143401 is a deficient number, since it is larger than the sum of its proper divisors (72747548).

873143401 is an frugal number, since it uses more digits than its factorization.

873143401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4572 (or 2286 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The cubic root of 873143401 is about 955.7886273845.

Adding to 873143401 its reverse (104341378), we get a palindrome (977484779).

The spelling of 873143401 in words is "eight hundred seventy-three million, one hundred forty-three thousand, four hundred one".