20007001 has 8 divisors (see below), whose sum is σ = 22898240. Its totient is φ = 17124048.

The previous prime is 20006993. The next prime is 20007017. The reversal of 20007001 is 10070002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20007001 - 2³ = 20006993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20007041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4510 + ... + 7768.

It is an arithmetic number, because the mean of its divisors is an integer number (2862280).

Almost surely, 2^20007001 is an apocalyptic number.

It is an amenable number.

20007001 is a deficient number, since it is larger than the sum of its proper divisors (2891239).

20007001 is an equidigital number, since it uses as much as digits as its factorization.

20007001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143.

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 20007001 is about 4472.9186221079. The cubic root of 20007001 is about 271.4734306941.

Adding to 20007001 its reverse (10070002), we get a palindrome (30077003).

The spelling of 20007001 in words is "twenty million, seven thousand, one".