1979971484 has 12 divisors (see below), whose sum is σ = 3496739400. Its totient is φ = 980903088.

The previous prime is 1979971459. The next prime is 1979971493. The reversal of 1979971484 is 4841799791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2270174 + ... + 2271045.

It is an arithmetic number, because the mean of its divisors is an integer number (291394950).

Almost surely, 2^1979971484 is an apocalyptic number.

It is an amenable number.

1979971484 is a deficient number, since it is larger than the sum of its proper divisors (1516767916).

1979971484 is a wasteful number, since it uses less digits than its factorization.

1979971484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541332 (or 4541330 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 59.

The square root of 1979971484 is about 44496.8704966990. The cubic root of 1979971484 is about 1255.7012073746.

The spelling of 1979971484 in words is "one billion, nine hundred seventy-nine million, nine hundred seventy-one thousand, four hundred eighty-four".