127666382 has 8 divisors (see below), whose sum is σ = 195574176. Its totient is φ = 62474992.

The previous prime is 127666373. The next prime is 127666387. The reversal of 127666382 is 283666721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×127666382³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127666387) 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 in 3 ways as a sum of consecutive naturals, for example, 678983 + ... + 679170.

It is an arithmetic number, because the mean of its divisors is an integer number (24446772).

Almost surely, 2^127666382 is an apocalyptic number.

127666382 is a deficient number, since it is larger than the sum of its proper divisors (67907794).

127666382 is a wasteful number, since it uses less digits than its factorization.

127666382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358202.

The product of its digits is 145152, while the sum is 41.

The square root of 127666382 is about 11298.9549074240. The cubic root of 127666382 is about 503.5301928184.

The spelling of 127666382 in words is "one hundred twenty-seven million, six hundred sixty-six thousand, three hundred eighty-two".