2790001 has 2 divisors, whose sum is σ = 2790002. Its totient is φ = 2790000.

The previous prime is 2789993. The next prime is 2790019. The reversal of 2790001 is 1000972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2405601 + 384400 = 1551^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 2790001 - 2³ = 2789993 is a prime.

2790001 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2790041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395000 + 1395001.

It is an arithmetic number, because the mean of its divisors is an integer number (1395001).

2^2790001 is an apocalyptic number.

It is an amenable number.

2790001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2790001 is an equidigital number, since it uses as much as digits as its factorization.

2790001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 2790001 is about 1670.3296081911. The cubic root of 2790001 is about 140.7779984830. Note that the first 3 decimals are identical.

Adding to 2790001 its reverse (1000972), we get a palindrome (3790973).

The spelling of 2790001 in words is "two million, seven hundred ninety thousand, one".