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1004001 = 3334667
BaseRepresentation
bin11110101000111100001
31220000020020
43311013201
5224112001
633304053
711351055
oct3650741
91800206
101004001
11626359
12405029
13291cab
141c1c65
1514c736
hexf51e1

1004001 has 4 divisors (see below), whose sum is σ = 1338672. Its totient is φ = 669332.

The previous prime is 1003963. The next prime is 1004027.

1004001 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1004001 - 211 = 1001953 is a prime.

It is a D-number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1004401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167331 + ... + 167336.

It is an arithmetic number, because the mean of its divisors is an integer number (334668).

21004001 is an apocalyptic number.

It is an amenable number.

1004001 is a deficient number, since it is larger than the sum of its proper divisors (334671).

1004001 is an equidigital number, since it uses as much as digits as its factorization.

1004001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334670.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 1004001 is about 1001.9985029929. The cubic root of 1004001 is about 100.1331891943.

The spelling of 1004001 in words is "one million, four thousand, one".

Divisors: 1 3 334667 1004001