887215913 has 2 divisors, whose sum is σ = 887215914. Its totient is φ = 887215912.

The previous prime is 887215841. The next prime is 887215951. The reversal of 887215913 is 319512788.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 848440384 + 38775529 = 29128^2 + 6227^2 .

It is a cyclic number.

It is not a de Polignac number, because 887215913 - 2¹⁶ = 887150377 is a prime.

It is not a weakly prime, because it can be changed into another prime (887215213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443607956 + 443607957.

It is an arithmetic number, because the mean of its divisors is an integer number (443607957).

Almost surely, 2^887215913 is an apocalyptic number.

It is an amenable number.

887215913 is a deficient number, since it is larger than the sum of its proper divisors (1).

887215913 is an equidigital number, since it uses as much as digits as its factorization.

887215913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 44.

The square root of 887215913 is about 29786.1698276230. The cubic root of 887215913 is about 960.8961225181.

The spelling of 887215913 in words is "eight hundred eighty-seven million, two hundred fifteen thousand, nine hundred thirteen".