127628445 has 16 divisors (see below), whose sum is σ = 233377920. Its totient is φ = 58344384.

The previous prime is 127628437. The next prime is 127628447. The reversal of 127628445 is 544826721.

It is not a de Polignac number, because 127628445 - 2³ = 127628437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127628447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607650 + ... + 607859.

It is an arithmetic number, because the mean of its divisors is an integer number (14586120).

Almost surely, 2^127628445 is an apocalyptic number.

127628445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

127628445 is a deficient number, since it is larger than the sum of its proper divisors (105749475).

127628445 is a wasteful number, since it uses less digits than its factorization.

127628445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215524.

The product of its digits is 107520, while the sum is 39.

The square root of 127628445 is about 11297.2759991070. The cubic root of 127628445 is about 503.4803119830.

The spelling of 127628445 in words is "one hundred twenty-seven million, six hundred twenty-eight thousand, four hundred forty-five".