118679657 has 2 divisors, whose sum is σ = 118679658. Its totient is φ = 118679656.

The previous prime is 118679651. The next prime is 118679731. The reversal of 118679657 is 756976811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79941481 + 38738176 = 8941^2 + 6224^2 .

It is an emirp because it is prime and its reverse (756976811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118679657 - 2⁴ = 118679641 is a prime.

It is not a weakly prime, because it can be changed into another prime (118679651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59339828 + 59339829.

It is an arithmetic number, because the mean of its divisors is an integer number (59339829).

Almost surely, 2^118679657 is an apocalyptic number.

It is an amenable number.

118679657 is a deficient number, since it is larger than the sum of its proper divisors (1).

118679657 is an equidigital number, since it uses as much as digits as its factorization.

118679657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 50.

The square root of 118679657 is about 10894.0193225457. The cubic root of 118679657 is about 491.4267137210.

The spelling of 118679657 in words is "one hundred eighteen million, six hundred seventy-nine thousand, six hundred fifty-seven".