6374021 has 2 divisors, whose sum is σ = 6374022. Its totient is φ = 6374020.

The previous prime is 6373981. The next prime is 6374029. The reversal of 6374021 is 1204736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6225025 + 148996 = 2495^2 + 386^2 .

It is a cyclic number.

It is not a de Polignac number, because 6374021 - 2¹⁸ = 6111877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6374029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3187010 + 3187011.

It is an arithmetic number, because the mean of its divisors is an integer number (3187011).

Almost surely, 2^6374021 is an apocalyptic number.

It is an amenable number.

6374021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6374021 is an equidigital number, since it uses as much as digits as its factorization.

6374021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 6374021 is about 2524.6823562579. The cubic root of 6374021 is about 185.4119963362.

Adding to 6374021 its reverse (1204736), we get a palindrome (7578757).

The spelling of 6374021 in words is "six million, three hundred seventy-four thousand, twenty-one".