887805157 has 2 divisors, whose sum is σ = 887805158. Its totient is φ = 887805156.

The previous prime is 887805143. The next prime is 887805167. The reversal of 887805157 is 751508788.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 797441121 + 90364036 = 28239^2 + 9506^2 .

It is a cyclic number.

It is not a de Polignac number, because 887805157 - 2¹⁹ = 887280869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 887805157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (887805167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443902578 + 443902579.

It is an arithmetic number, because the mean of its divisors is an integer number (443902579).

Almost surely, 2^887805157 is an apocalyptic number.

It is an amenable number.

887805157 is a deficient number, since it is larger than the sum of its proper divisors (1).

887805157 is an equidigital number, since it uses as much as digits as its factorization.

887805157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 627200, while the sum is 49.

The square root of 887805157 is about 29796.0594206684. The cubic root of 887805157 is about 961.1088016661.

The spelling of 887805157 in words is "eight hundred eighty-seven million, eight hundred five thousand, one hundred fifty-seven".