1674361421 has 2 divisors, whose sum is σ = 1674361422. Its totient is φ = 1674361420.

The previous prime is 1674361397. The next prime is 1674361439. The reversal of 1674361421 is 1241634761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1422345796 + 252015625 = 37714^2 + 15875^2 .

It is a cyclic number.

It is not a de Polignac number, because 1674361421 - 2¹⁸ = 1674099277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1674361441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837180710 + 837180711.

It is an arithmetic number, because the mean of its divisors is an integer number (837180711).

Almost surely, 2^1674361421 is an apocalyptic number.

It is an amenable number.

1674361421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1674361421 is an equidigital number, since it uses as much as digits as its factorization.

1674361421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 1674361421 is about 40918.9616314979. The cubic root of 1674361421 is about 1187.4529286753.

The spelling of 1674361421 in words is "one billion, six hundred seventy-four million, three hundred sixty-one thousand, four hundred twenty-one".