118838887 has 2 divisors, whose sum is σ = 118838888. Its totient is φ = 118838886.

The previous prime is 118838849. The next prime is 118838893. The reversal of 118838887 is 788838811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118838887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118838807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59419443 + 59419444.

It is an arithmetic number, because the mean of its divisors is an integer number (59419444).

Almost surely, 2^118838887 is an apocalyptic number.

118838887 is a deficient number, since it is larger than the sum of its proper divisors (1).

118838887 is an equidigital number, since it uses as much as digits as its factorization.

118838887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 688128, while the sum is 52.

The square root of 118838887 is about 10901.3250112085. The cubic root of 118838887 is about 491.6463944656.

The spelling of 118838887 in words is "one hundred eighteen million, eight hundred thirty-eight thousand, eight hundred eighty-seven".