127928770 has 8 divisors (see below), whose sum is σ = 230271804. Its totient is φ = 51171504.

The previous prime is 127928753. The next prime is 127928821. The reversal of 127928770 is 77829721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 127080529 + 848241 = 11273^2 + 921^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6396429 + ... + 6396448.

Almost surely, 2^127928770 is an apocalyptic number.

127928770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127928770 is a deficient number, since it is larger than the sum of its proper divisors (102343034).

127928770 is a wasteful number, since it uses less digits than its factorization.

127928770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12792884.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 127928770 is about 11310.5601099150. The cubic root of 127928770 is about 503.8749190948.

The spelling of 127928770 in words is "one hundred twenty-seven million, nine hundred twenty-eight thousand, seven hundred seventy".