118077779 has 2 divisors, whose sum is σ = 118077780. Its totient is φ = 118077778.

The previous prime is 118077769. The next prime is 118077793. The reversal of 118077779 is 977770811.

It is a weak prime.

It is an emirp because it is prime and its reverse (977770811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118077779 - 2⁸ = 118077523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118077769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59038889 + 59038890.

It is an arithmetic number, because the mean of its divisors is an integer number (59038890).

Almost surely, 2^118077779 is an apocalyptic number.

118077779 is a deficient number, since it is larger than the sum of its proper divisors (1).

118077779 is an equidigital number, since it uses as much as digits as its factorization.

118077779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172872, while the sum is 47.

The square root of 118077779 is about 10866.3599701096. The cubic root of 118077779 is about 490.5945566408.

The spelling of 118077779 in words is "one hundred eighteen million, seventy-seven thousand, seven hundred seventy-nine".