1127469979 has 4 divisors (see below), whose sum is σ = 1127588800. Its totient is φ = 1127351160.

The previous prime is 1127469961. The next prime is 1127470009. The reversal of 1127469979 is 9799647211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9799647211 = 257 ⋅38130923.

It is a cyclic number.

It is not a de Polignac number, because 1127469979 - 2⁹ = 1127469467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1127469929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43812 + ... + 64609.

It is an arithmetic number, because the mean of its divisors is an integer number (281897200).

Almost surely, 2^1127469979 is an apocalyptic number.

1127469979 is a deficient number, since it is larger than the sum of its proper divisors (118821).

1127469979 is a wasteful number, since it uses less digits than its factorization.

1127469979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118820.

The product of its digits is 1714608, while the sum is 55.

The square root of 1127469979 is about 33577.8197475655. The cubic root of 1127469979 is about 1040.8025052876.

The spelling of 1127469979 in words is "one billion, one hundred twenty-seven million, four hundred sixty-nine thousand, nine hundred seventy-nine".