127792949 has 4 divisors (see below), whose sum is σ = 127923936. Its totient is φ = 127661964.

The previous prime is 127792921. The next prime is 127792957. The reversal of 127792949 is 949297721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949297721 = 929 ⋅1021849.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127792949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127792897 and 127792906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127792969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64019 + ... + 65984.

It is an arithmetic number, because the mean of its divisors is an integer number (31980984).

Almost surely, 2^127792949 is an apocalyptic number.

It is an amenable number.

127792949 is a deficient number, since it is larger than the sum of its proper divisors (130987).

127792949 is an equidigital number, since it uses as much as digits as its factorization.

127792949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130986.

The product of its digits is 571536, while the sum is 50.

The square root of 127792949 is about 11304.5543476954. The cubic root of 127792949 is about 503.6965358969.

The spelling of 127792949 in words is "one hundred twenty-seven million, seven hundred ninety-two thousand, nine hundred forty-nine".