209084633 has 2 divisors, whose sum is σ = 209084634. Its totient is φ = 209084632.

The previous prime is 209084627. The next prime is 209084657. The reversal of 209084633 is 336480902.

It is a happy number.

209084633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185967769 + 23116864 = 13637^2 + 4808^2 .

It is a cyclic number.

It is not a de Polignac number, because 209084633 - 2¹² = 209080537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 209084593 and 209084602.

It is not a weakly prime, because it can be changed into another prime (209084033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104542316 + 104542317.

It is an arithmetic number, because the mean of its divisors is an integer number (104542317).

Almost surely, 2^209084633 is an apocalyptic number.

It is an amenable number.

209084633 is a deficient number, since it is larger than the sum of its proper divisors (1).

209084633 is an equidigital number, since it uses as much as digits as its factorization.

209084633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 209084633 is about 14459.7590920458. The cubic root of 209084633 is about 593.5273072460.

The spelling of 209084633 in words is "two hundred nine million, eighty-four thousand, six hundred thirty-three".