1979550127 has 4 divisors (see below), whose sum is σ = 1993999536. Its totient is φ = 1965100720.

The previous prime is 1979550119. The next prime is 1979550137. The reversal of 1979550127 is 7210559791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7210559791 = 43 ⋅167687437.

It is a cyclic number.

It is not a de Polignac number, because 1979550127 - 2³ = 1979550119 is a prime.

It is a super-2 number, since 2×1979550127² = 7837237410611432258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979550137) 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, 7224499 + ... + 7224772.

It is an arithmetic number, because the mean of its divisors is an integer number (498499884).

Almost surely, 2^1979550127 is an apocalyptic number.

1979550127 is a deficient number, since it is larger than the sum of its proper divisors (14449409).

1979550127 is a wasteful number, since it uses less digits than its factorization.

1979550127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14449408.

The product of its (nonzero) digits is 198450, while the sum is 46.

The square root of 1979550127 is about 44492.1355634903. The cubic root of 1979550127 is about 1255.6121259519.

The spelling of 1979550127 in words is "one billion, nine hundred seventy-nine million, five hundred fifty thousand, one hundred twenty-seven".