1679992620 has 96 divisors (see below), whose sum is σ = 4895190720. Its totient is φ = 429972480.

The previous prime is 1679992603. The next prime is 1679992621. The reversal of 1679992620 is 262999761.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1679992621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298230 + ... + 303810.

It is an arithmetic number, because the mean of its divisors is an integer number (50991570).

Almost surely, 2^1679992620 is an apocalyptic number.

1679992620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1679992620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2447595360).

1679992620 is an abundant number, since it is smaller than the sum of its proper divisors (3215198100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1679992620 is a wasteful number, since it uses less digits than its factorization.

1679992620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5795 (or 5793 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 1679992620 is about 40987.7130369578. The cubic root of 1679992620 is about 1188.7826498301.

The spelling of 1679992620 in words is "one billion, six hundred seventy-nine million, nine hundred ninety-two thousand, six hundred twenty".