127993918 has 32 divisors (see below), whose sum is σ = 230459040. Its totient is φ = 52669440.

The previous prime is 127993913. The next prime is 127993939. The reversal of 127993918 is 819399721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127993913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778 + ... + 16018.

It is an arithmetic number, because the mean of its divisors is an integer number (7201845).

Almost surely, 2^127993918 is an apocalyptic number.

127993918 is a deficient number, since it is larger than the sum of its proper divisors (102465122).

127993918 is a wasteful number, since it uses less digits than its factorization.

127993918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15292.

The product of its digits is 244944, while the sum is 49.

The square root of 127993918 is about 11313.4397068266. The cubic root of 127993918 is about 503.9604377067.

The spelling of 127993918 in words is "one hundred twenty-seven million, nine hundred ninety-three thousand, nine hundred eighteen".