127713887 has 4 divisors (see below), whose sum is σ = 145958736. Its totient is φ = 109469040.

The previous prime is 127713863. The next prime is 127713889. The reversal of 127713887 is 788317721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127713887 - 2⁶ = 127713823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127713889) 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, 9122414 + ... + 9122427.

It is an arithmetic number, because the mean of its divisors is an integer number (36489684).

Almost surely, 2^127713887 is an apocalyptic number.

127713887 is a deficient number, since it is larger than the sum of its proper divisors (18244849).

127713887 is an equidigital number, since it uses as much as digits as its factorization.

127713887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18244848.

The product of its digits is 131712, while the sum is 44.

The square root of 127713887 is about 11301.0568974764. The cubic root of 127713887 is about 503.5926400477.

The spelling of 127713887 in words is "one hundred twenty-seven million, seven hundred thirteen thousand, eight hundred eighty-seven".