382878887 has 2 divisors, whose sum is σ = 382878888. Its totient is φ = 382878886.

The previous prime is 382878863. The next prime is 382878889. The reversal of 382878887 is 788878283.

It is a strong prime.

It is an emirp because it is prime and its reverse (788878283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 382878887 - 2¹⁸ = 382616743 is a prime.

It is a super-2 number, since 2×382878887² = 293192484220717538, which contains 22 as substring.

Together with 382878889, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382878889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191439443 + 191439444.

It is an arithmetic number, because the mean of its divisors is an integer number (191439444).

Almost surely, 2^382878887 is an apocalyptic number.

382878887 is a deficient number, since it is larger than the sum of its proper divisors (1).

382878887 is an equidigital number, since it uses as much as digits as its factorization.

382878887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9633792, while the sum is 59.

The square root of 382878887 is about 19567.2912535179. The cubic root of 382878887 is about 726.1401873696.

It can be divided in two parts, 38287 and 8887, that added together give a palindrome (47174).

The spelling of 382878887 in words is "three hundred eighty-two million, eight hundred seventy-eight thousand, eight hundred eighty-seven".