1979259764 has 12 divisors (see below), whose sum is σ = 3464460804. Its totient is φ = 989413824.

The previous prime is 1979259761. The next prime is 1979259791. The reversal of 1979259764 is 4679529791.

It can be written as a sum of positive squares in 2 ways, for example, as 1874197264 + 105062500 = 43292^2 + 10250^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979259761) 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, 32447 + ... + 70790.

It is an arithmetic number, because the mean of its divisors is an integer number (288705067).

Almost surely, 2^1979259764 is an apocalyptic number.

It is an amenable number.

1979259764 is a deficient number, since it is larger than the sum of its proper divisors (1485201040).

1979259764 is a wasteful number, since it uses less digits than its factorization.

1979259764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108034 (or 108032 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 59.

The square root of 1979259764 is about 44488.8723615243. The cubic root of 1979259764 is about 1255.5507313407.

The spelling of 1979259764 in words is "one billion, nine hundred seventy-nine million, two hundred fifty-nine thousand, seven hundred sixty-four".