8428633 has 2 divisors, whose sum is σ = 8428634. Its totient is φ = 8428632.

The previous prime is 8428631. The next prime is 8428661. The reversal of 8428633 is 3368248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4376464 + 4052169 = 2092^2 + 2013^2 .

It is a cyclic number.

It is not a de Polignac number, because 8428633 - 2¹ = 8428631 is a prime.

Together with 8428631, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8428631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4214316 + 4214317.

It is an arithmetic number, because the mean of its divisors is an integer number (4214317).

Almost surely, 2^8428633 is an apocalyptic number.

It is an amenable number.

8428633 is a deficient number, since it is larger than the sum of its proper divisors (1).

8428633 is an equidigital number, since it uses as much as digits as its factorization.

8428633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The square root of 8428633 is about 2903.2108087426. The cubic root of 8428633 is about 203.5099814602.

The spelling of 8428633 in words is "eight million, four hundred twenty-eight thousand, six hundred thirty-three".