2898421 has 2 divisors, whose sum is σ = 2898422. Its totient is φ = 2898420.

The previous prime is 2898409. The next prime is 2898451. The reversal of 2898421 is 1248982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1664100 + 1234321 = 1290^2 + 1111^2 .

It is a cyclic number.

It is not a de Polignac number, because 2898421 - 2¹¹ = 2896373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2898451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1449210 + 1449211.

It is an arithmetic number, because the mean of its divisors is an integer number (1449211).

2^2898421 is an apocalyptic number.

It is an amenable number.

2898421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2898421 is an equidigital number, since it uses as much as digits as its factorization.

2898421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 34.

The square root of 2898421 is about 1702.4749631052. The cubic root of 2898421 is about 142.5784281519.

The spelling of 2898421 in words is "two million, eight hundred ninety-eight thousand, four hundred twenty-one".