127980007 has 4 divisors (see below), whose sum is σ = 128003200. Its totient is φ = 127956816.

The previous prime is 127979989. The next prime is 127980019. The reversal of 127980007 is 700089721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700089721 = 353 ⋅1983257.

It is a cyclic number.

It is not a de Polignac number, because 127980007 - 2¹¹ = 127977959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127980907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1978 + ... + 16120.

It is an arithmetic number, because the mean of its divisors is an integer number (32000800).

Almost surely, 2^127980007 is an apocalyptic number.

127980007 is a deficient number, since it is larger than the sum of its proper divisors (23193).

127980007 is an equidigital number, since it uses as much as digits as its factorization.

127980007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23192.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 127980007 is about 11312.8248903623. The cubic root of 127980007 is about 503.9421794234.

The spelling of 127980007 in words is "one hundred twenty-seven million, nine hundred eighty thousand, seven".