6635633 has 2 divisors, whose sum is σ = 6635634. Its totient is φ = 6635632.

The previous prime is 6635621. The next prime is 6635659. The reversal of 6635633 is 3365366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6615184 + 20449 = 2572^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 6635633 - 2¹⁶ = 6570097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6635633.

It is not a weakly prime, because it can be changed into another prime (6635663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3317816 + 3317817.

It is an arithmetic number, because the mean of its divisors is an integer number (3317817).

Almost surely, 2^6635633 is an apocalyptic number.

It is an amenable number.

6635633 is a deficient number, since it is larger than the sum of its proper divisors (1).

6635633 is an equidigital number, since it uses as much as digits as its factorization.

6635633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 32.

The square root of 6635633 is about 2575.9722436393. The cubic root of 6635633 is about 187.9147134658.

The spelling of 6635633 in words is "six million, six hundred thirty-five thousand, six hundred thirty-three".