8888839 has 2 divisors, whose sum is σ = 8888840. Its totient is φ = 8888838.

The previous prime is 8888821. The next prime is 8888849. The reversal of 8888839 is 9388888.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8888839 - 2²³ = 500231 is a prime.

It is a super-2 number, since 2×8888839² = 158022917535842, which contains 22 as substring.

8888839 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8888849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4444419 + 4444420.

It is an arithmetic number, because the mean of its divisors is an integer number (4444420).

Almost surely, 2^8888839 is an apocalyptic number.

8888839 is a deficient number, since it is larger than the sum of its proper divisors (1).

8888839 is an equidigital number, since it uses as much as digits as its factorization.

8888839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 884736, while the sum is 52.

The square root of 8888839 is about 2981.4156033670. The cubic root of 8888839 is about 207.1484461886.

The spelling of 8888839 in words is "eight million, eight hundred eighty-eight thousand, eight hundred thirty-nine".