873573157 has 2 divisors, whose sum is σ = 873573158. Its totient is φ = 873573156.

The previous prime is 873573109. The next prime is 873573167. The reversal of 873573157 is 751375378.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491331556 + 382241601 = 22166^2 + 19551^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-873573157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (873573167) 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 as a sum of consecutive naturals, namely, 436786578 + 436786579.

It is an arithmetic number, because the mean of its divisors is an integer number (436786579).

Almost surely, 2^873573157 is an apocalyptic number.

It is an amenable number.

873573157 is a deficient number, since it is larger than the sum of its proper divisors (1).

873573157 is an equidigital number, since it uses as much as digits as its factorization.

873573157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 617400, while the sum is 46.

The square root of 873573157 is about 29556.2710266366. The cubic root of 873573157 is about 955.9454128277.

The spelling of 873573157 in words is "eight hundred seventy-three million, five hundred seventy-three thousand, one hundred fifty-seven".