1799928001 has 4 divisors (see below), whose sum is σ = 1800039892. Its totient is φ = 1799816112.

The previous prime is 1799927971. The next prime is 1799928017. The reversal of 1799928001 is 1008299971.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1053327025 + 746600976 = 32455^2 + 27324^2 .

It is a cyclic number.

It is not a de Polignac number, because 1799928001 - 2⁷ = 1799927873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1799928041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26730 + ... + 65683.

It is an arithmetic number, because the mean of its divisors is an integer number (450009973).

Almost surely, 2^1799928001 is an apocalyptic number.

It is an amenable number.

1799928001 is a deficient number, since it is larger than the sum of its proper divisors (111891).

1799928001 is an equidigital number, since it uses as much as digits as its factorization.

1799928001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111890.

The product of its (nonzero) digits is 81648, while the sum is 46.

The square root of 1799928001 is about 42425.5583463553. The cubic root of 1799928001 is about 1216.4241799184.

The spelling of 1799928001 in words is "one billion, seven hundred ninety-nine million, nine hundred twenty-eight thousand, one".