127976849 has 16 divisors (see below), whose sum is σ = 171830400. Its totient is φ = 92050560.

The previous prime is 127976839. The next prime is 127976857. The reversal of 127976849 is 948679721.

It is a de Polignac number, because none of the positive numbers 2^k-127976849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127976849.

It is not an unprimeable number, because it can be changed into a prime (127976809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62924 + ... + 64925.

It is an arithmetic number, because the mean of its divisors is an integer number (10739400).

Almost surely, 2^127976849 is an apocalyptic number.

It is an amenable number.

127976849 is a deficient number, since it is larger than the sum of its proper divisors (43853551).

127976849 is a wasteful number, since it uses less digits than its factorization.

127976849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127880.

The product of its digits is 1524096, while the sum is 53.

The square root of 127976849 is about 11312.6853133993. The cubic root of 127976849 is about 503.9380343424.

The spelling of 127976849 in words is "one hundred twenty-seven million, nine hundred seventy-six thousand, eight hundred forty-nine".