127928715 has 24 divisors (see below), whose sum is σ = 212008368. Its totient is φ = 65869440.

The previous prime is 127928701. The next prime is 127928719. The reversal of 127928715 is 517829721.

It is not a de Polignac number, because 127928715 - 2⁵ = 127928683 is a prime.

It is a super-2 number, since 2×127928715² = 32731512243102450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127928719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7545 + ... + 17685.

It is an arithmetic number, because the mean of its divisors is an integer number (8833682).

Almost surely, 2^127928715 is an apocalyptic number.

127928715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

127928715 is a deficient number, since it is larger than the sum of its proper divisors (84079653).

127928715 is a wasteful number, since it uses less digits than its factorization.

127928715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10207 (or 10178 counting only the distinct ones).

The product of its digits is 70560, while the sum is 42.

The square root of 127928715 is about 11310.5576785586. The cubic root of 127928715 is about 503.8748468850.

The spelling of 127928715 in words is "one hundred twenty-seven million, nine hundred twenty-eight thousand, seven hundred fifteen".