1979690002 has 8 divisors (see below), whose sum is σ = 3041962812. Its totient is φ = 965702400.

The previous prime is 1979689981. The next prime is 1979690003. The reversal of 1979690002 is 2000969791.

It can be written as a sum of positive squares in 2 ways, for example, as 1975891401 + 3798601 = 44451^2 + 1949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1979690003) 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, 12071199 + ... + 12071362.

Almost surely, 2^1979690002 is an apocalyptic number.

1979690002 is a deficient number, since it is larger than the sum of its proper divisors (1062272810).

1979690002 is a wasteful number, since it uses less digits than its factorization.

1979690002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24142604.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 1979690002 is about 44493.7074427385. The cubic root of 1979690002 is about 1255.6416991037.

The spelling of 1979690002 in words is "one billion, nine hundred seventy-nine million, six hundred ninety thousand, two".