578888887 has 2 divisors, whose sum is σ = 578888888. Its totient is φ = 578888886.

The previous prime is 578888867. The next prime is 578888899. The reversal of 578888887 is 788888875.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-578888887 is a prime.

It is a super-2 number, since 2×578888887² = 670224686984197538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (578888867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289444443 + 289444444.

It is an arithmetic number, because the mean of its divisors is an integer number (289444444).

Almost surely, 2^578888887 is an apocalyptic number.

578888887 is a deficient number, since it is larger than the sum of its proper divisors (1).

578888887 is an equidigital number, since it uses as much as digits as its factorization.

578888887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64225280, while the sum is 67.

The square root of 578888887 is about 24060.1098709046. The cubic root of 578888887 is about 833.4222118360.

The spelling of 578888887 in words is "five hundred seventy-eight million, eight hundred eighty-eight thousand, eight hundred eighty-seven".