6398633 has 2 divisors, whose sum is σ = 6398634. Its totient is φ = 6398632.

The previous prime is 6398629. The next prime is 6398671. The reversal of 6398633 is 3368936.

It is an a-pointer prime, because the next prime (6398671) can be obtained adding 6398633 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3429904 + 2968729 = 1852^2 + 1723^2 .

It is a cyclic number.

It is not a de Polignac number, because 6398633 - 2² = 6398629 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6398933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3199316 + 3199317.

It is an arithmetic number, because the mean of its divisors is an integer number (3199317).

Almost surely, 2^6398633 is an apocalyptic number.

It is an amenable number.

6398633 is a deficient number, since it is larger than the sum of its proper divisors (1).

6398633 is an equidigital number, since it uses as much as digits as its factorization.

6398633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 38.

The square root of 6398633 is about 2529.5519366085. The cubic root of 6398633 is about 185.6503335450.

The spelling of 6398633 in words is "six million, three hundred ninety-eight thousand, six hundred thirty-three".