2900001 has 32 divisors (see below), whose sum is σ = 4499712. Its totient is φ = 1647360.

The previous prime is 2899997. The next prime is 2900017. The reversal of 2900001 is 1000092.

It is a happy number.

It is not a de Polignac number, because 2900001 - 2² = 2899997 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 2900001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2901001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47511 + ... + 47571.

It is an arithmetic number, because the mean of its divisors is an integer number (140616).

2^2900001 is an apocalyptic number.

It is an amenable number.

2900001 is a deficient number, since it is larger than the sum of its proper divisors (1599711).

2900001 is a wasteful number, since it uses less digits than its factorization.

2900001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 2900001 is about 1702.9389302027. The cubic root of 2900001 is about 142.6043311055.

Adding to 2900001 its reverse (1000092), we get a palindrome (3900093).

The spelling of 2900001 in words is "two million, nine hundred thousand, one".