1679666396 has 12 divisors (see below), whose sum is σ = 2946054552. Its totient is φ = 837936528.

The previous prime is 1679666381. The next prime is 1679666447. The reversal of 1679666396 is 6936669761.

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, 472175 + ... + 475718.

It is an arithmetic number, because the mean of its divisors is an integer number (245504546).

Almost surely, 2^1679666396 is an apocalyptic number.

It is an amenable number.

1679666396 is a deficient number, since it is larger than the sum of its proper divisors (1266388156).

1679666396 is a wasteful number, since it uses less digits than its factorization.

1679666396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948340 (or 948338 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 59.

The square root of 1679666396 is about 40983.7333096925. The cubic root of 1679666396 is about 1188.7056981953.

The spelling of 1679666396 in words is "one billion, six hundred seventy-nine million, six hundred sixty-six thousand, three hundred ninety-six".