384961001 has 4 divisors (see below), whose sum is σ = 385000404. Its totient is φ = 384921600.

The previous prime is 384960997. The next prime is 384961021. The reversal of 384961001 is 100169483.

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 111091600 + 273869401 = 10540^2 + 16549^2 .

It is a cyclic number.

It is not a de Polignac number, because 384961001 - 2² = 384960997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (384961021) 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, 7181 + ... + 28661.

It is an arithmetic number, because the mean of its divisors is an integer number (96250101).

Almost surely, 2^384961001 is an apocalyptic number.

It is an amenable number.

384961001 is a deficient number, since it is larger than the sum of its proper divisors (39403).

384961001 is a wasteful number, since it uses less digits than its factorization.

384961001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39402.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 384961001 is about 19620.4230586397. The cubic root of 384961001 is about 727.4540704659.

The spelling of 384961001 in words is "three hundred eighty-four million, nine hundred sixty-one thousand, one".