2990001 has 8 divisors (see below), whose sum is σ = 4556224. Its totient is φ = 1708560.

The previous prime is 2989997. The next prime is 2990017. The reversal of 2990001 is 1000992.

It is a happy number.

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

It is not a de Polignac number, because 2990001 - 2² = 2989997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 142381 = 2990001 / (2 + 9 + 9 + 0 + 0 + 0 + 1).

It is a Duffinian number.

2990001 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2990001.

It is not an unprimeable number, because it can be changed into a prime (2990021) 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, 71170 + ... + 71211.

It is an arithmetic number, because the mean of its divisors is an integer number (569528).

2^2990001 is an apocalyptic number.

2990001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2990001 is a deficient number, since it is larger than the sum of its proper divisors (1566223).

2990001 is a wasteful number, since it uses less digits than its factorization.

2990001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142391.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 2990001 is about 1729.1619357365. The cubic root of 2990001 is about 144.0645447532.

Adding to 2990001 its reverse (1000992), we get a palindrome (3990993).

The spelling of 2990001 in words is "two million, nine hundred ninety thousand, one".