118627997 has 4 divisors (see below), whose sum is σ = 123785760. Its totient is φ = 113470236.

The previous prime is 118627973. The next prime is 118628017. The reversal of 118627997 is 799726811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 799726811 = 13 ⋅61517447.

It is a cyclic number.

It is not a de Polignac number, because 118627997 - 2⁶ = 118627933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118627097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2578847 + ... + 2578892.

It is an arithmetic number, because the mean of its divisors is an integer number (30946440).

Almost surely, 2^118627997 is an apocalyptic number.

It is an amenable number.

118627997 is a deficient number, since it is larger than the sum of its proper divisors (5157763).

118627997 is an equidigital number, since it uses as much as digits as its factorization.

118627997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157762.

The product of its digits is 381024, while the sum is 50.

The square root of 118627997 is about 10891.6480387497. The cubic root of 118627997 is about 491.3553990881.

The spelling of 118627997 in words is "one hundred eighteen million, six hundred twenty-seven thousand, nine hundred ninety-seven".