1979353127 has 4 divisors (see below), whose sum is σ = 1997512440. Its totient is φ = 1961193816.

The previous prime is 1979353111. The next prime is 1979353157. The reversal of 1979353127 is 7213539791.

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 1979353127 - 2⁴ = 1979353111 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 (1979353157) 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, 9079493 + ... + 9079710.

It is an arithmetic number, because the mean of its divisors is an integer number (499378110).

Almost surely, 2^1979353127 is an apocalyptic number.

1979353127 is a deficient number, since it is larger than the sum of its proper divisors (18159313).

1979353127 is a wasteful number, since it uses less digits than its factorization.

1979353127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18159312.

The product of its digits is 357210, while the sum is 47.

The square root of 1979353127 is about 44489.9216340061. The cubic root of 1979353127 is about 1255.5704727514.

The spelling of 1979353127 in words is "one billion, nine hundred seventy-nine million, three hundred fifty-three thousand, one hundred twenty-seven".