118923647 has 2 divisors, whose sum is σ = 118923648. Its totient is φ = 118923646.

The previous prime is 118923631. The next prime is 118923671. The reversal of 118923647 is 746329811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118923647 - 2⁴ = 118923631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118923947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59461823 + 59461824.

It is an arithmetic number, because the mean of its divisors is an integer number (59461824).

Almost surely, 2^118923647 is an apocalyptic number.

118923647 is a deficient number, since it is larger than the sum of its proper divisors (1).

118923647 is an equidigital number, since it uses as much as digits as its factorization.

118923647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 118923647 is about 10905.2119190780. The cubic root of 118923647 is about 491.7632530857.

The spelling of 118923647 in words is "one hundred eighteen million, nine hundred twenty-three thousand, six hundred forty-seven".