873873557 has 2 divisors, whose sum is σ = 873873558. Its totient is φ = 873873556.

The previous prime is 873873547. The next prime is 873873571. The reversal of 873873557 is 755378378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 632723716 + 241149841 = 25154^2 + 15529^2 .

It is a cyclic number.

It is not a de Polignac number, because 873873557 - 2⁴ = 873873541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 873873499 and 873873508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (873873547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436936778 + 436936779.

It is an arithmetic number, because the mean of its divisors is an integer number (436936779).

Almost surely, 2^873873557 is an apocalyptic number.

It is an amenable number.

873873557 is a deficient number, since it is larger than the sum of its proper divisors (1).

873873557 is an equidigital number, since it uses as much as digits as its factorization.

873873557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4939200, while the sum is 53.

The square root of 873873557 is about 29561.3524217009. The cubic root of 873873557 is about 956.0549755241.

The spelling of 873873557 in words is "eight hundred seventy-three million, eight hundred seventy-three thousand, five hundred fifty-seven".