118799917 has 2 divisors, whose sum is σ = 118799918. Its totient is φ = 118799916.

The previous prime is 118799909. The next prime is 118799929. The reversal of 118799917 is 719997811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110796676 + 8003241 = 10526^2 + 2829^2 .

It is a cyclic number.

It is not a de Polignac number, because 118799917 - 2³ = 118799909 is a prime.

It is a super-2 number, since 2×118799917² = 28226840558413778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118799957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59399958 + 59399959.

It is an arithmetic number, because the mean of its divisors is an integer number (59399959).

Almost surely, 2^118799917 is an apocalyptic number.

It is an amenable number.

118799917 is a deficient number, since it is larger than the sum of its proper divisors (1).

118799917 is an equidigital number, since it uses as much as digits as its factorization.

118799917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 52.

The square root of 118799917 is about 10899.5374672506. The cubic root of 118799917 is about 491.5926478761.

It can be divided in two parts, 118799 and 917, that added together give a square (119716 = 346²).

The spelling of 118799917 in words is "one hundred eighteen million, seven hundred ninety-nine thousand, nine hundred seventeen".