368421643 has 2 divisors, whose sum is σ = 368421644. Its totient is φ = 368421642.

The previous prime is 368421631. The next prime is 368421653. The reversal of 368421643 is 346124863.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 368421643 - 2⁵ = 368421611 is a prime.

It is not a weakly prime, because it can be changed into another prime (368421623) 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, 184210821 + 184210822.

It is an arithmetic number, because the mean of its divisors is an integer number (184210822).

Almost surely, 2^368421643 is an apocalyptic number.

368421643 is a deficient number, since it is larger than the sum of its proper divisors (1).

368421643 is an equidigital number, since it uses as much as digits as its factorization.

368421643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The square root of 368421643 is about 19194.3127774870. The cubic root of 368421643 is about 716.8831594249.

The spelling of 368421643 in words is "three hundred sixty-eight million, four hundred twenty-one thousand, six hundred forty-three".