2654021 has 2 divisors, whose sum is σ = 2654022. Its totient is φ = 2654020.

The previous prime is 2654011. The next prime is 2654027. The reversal of 2654021 is 1204562.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 45796 = 1615^2 + 214^2 .

It is a cyclic number.

It is not a de Polignac number, because 2654021 - 2⁶ = 2653957 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2653984 and 2654002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2654027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327010 + 1327011.

It is an arithmetic number, because the mean of its divisors is an integer number (1327011).

2^2654021 is an apocalyptic number.

It is an amenable number.

2654021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2654021 is an equidigital number, since it uses as much as digits as its factorization.

2654021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2654021 is about 1629.1166317977. The cubic root of 2654021 is about 138.4527070736.

Adding to 2654021 its reverse (1204562), we get a palindrome (3858583).

The spelling of 2654021 in words is "two million, six hundred fifty-four thousand, twenty-one".