127765667 has 8 divisors (see below), whose sum is σ = 133585440. Its totient is φ = 122199000.

The previous prime is 127765657. The next prime is 127765681. The reversal of 127765667 is 766567721.

It is not a de Polignac number, because 127765667 - 2¹⁰ = 127764643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127765607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6917 + ... + 17417.

It is an arithmetic number, because the mean of its divisors is an integer number (16698180).

Almost surely, 2^127765667 is an apocalyptic number.

127765667 is a deficient number, since it is larger than the sum of its proper divisors (5819773).

127765667 is an frugal number, since it uses more digits than its factorization.

127765667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10570 (or 10524 counting only the distinct ones).

The product of its digits is 740880, while the sum is 47.

The square root of 127765667 is about 11303.3476014851. The cubic root of 127765667 is about 503.6606893002.

The spelling of 127765667 in words is "one hundred twenty-seven million, seven hundred sixty-five thousand, six hundred sixty-seven".