875192321 has 2 divisors, whose sum is σ = 875192322. Its totient is φ = 875192320.

The previous prime is 875192309. The next prime is 875192323. The reversal of 875192321 is 123291578.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 571735921 + 303456400 = 23911^2 + 17420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-875192321 is a prime.

Together with 875192323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (875192323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437596160 + 437596161.

It is an arithmetic number, because the mean of its divisors is an integer number (437596161).

Almost surely, 2^875192321 is an apocalyptic number.

It is an amenable number.

875192321 is a deficient number, since it is larger than the sum of its proper divisors (1).

875192321 is an equidigital number, since it uses as much as digits as its factorization.

875192321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 875192321 is about 29583.6495551174. The cubic root of 875192321 is about 956.5356618409.

The spelling of 875192321 in words is "eight hundred seventy-five million, one hundred ninety-two thousand, three hundred twenty-one".