118856789 has 2 divisors, whose sum is σ = 118856790. Its totient is φ = 118856788.

The previous prime is 118856767. The next prime is 118856797. The reversal of 118856789 is 987658811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66178225 + 52678564 = 8135^2 + 7258^2 .

It is a cyclic number.

It is not a de Polignac number, because 118856789 - 2²⁰ = 117808213 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118856789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118856729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59428394 + 59428395.

It is an arithmetic number, because the mean of its divisors is an integer number (59428395).

Almost surely, 2^118856789 is an apocalyptic number.

It is an amenable number.

118856789 is a deficient number, since it is larger than the sum of its proper divisors (1).

118856789 is an equidigital number, since it uses as much as digits as its factorization.

118856789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 53.

The square root of 118856789 is about 10902.1460731362. The cubic root of 118856789 is about 491.6710805822.

The spelling of 118856789 in words is "one hundred eighteen million, eight hundred fifty-six thousand, seven hundred eighty-nine".