393798001 has 4 divisors (see below), whose sum is σ = 393846004. Its totient is φ = 393750000.

The previous prime is 393797983. The next prime is 393798023. The reversal of 393798001 is 100897393.

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 132135025 + 261662976 = 11495^2 + 16176^2 .

It is a cyclic number.

It is not a de Polignac number, because 393798001 - 2⁵ = 393797969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393798401) 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, 8250 + ... + 29251.

It is an arithmetic number, because the mean of its divisors is an integer number (98461501).

Almost surely, 2^393798001 is an apocalyptic number.

It is an amenable number.

393798001 is a deficient number, since it is larger than the sum of its proper divisors (48003).

393798001 is a wasteful number, since it uses less digits than its factorization.

393798001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48002.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 393798001 is about 19844.3443076359. The cubic root of 393798001 is about 732.9783871578.

The spelling of 393798001 in words is "three hundred ninety-three million, seven hundred ninety-eight thousand, one".