202328639 has 2 divisors, whose sum is σ = 202328640. Its totient is φ = 202328638.

The previous prime is 202328551. The next prime is 202328669. The reversal of 202328639 is 936823202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202328639 - 2²⁴ = 185551423 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 202328599 and 202328608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202328669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101164319 + 101164320.

It is an arithmetic number, because the mean of its divisors is an integer number (101164320).

Almost surely, 2^202328639 is an apocalyptic number.

202328639 is a deficient number, since it is larger than the sum of its proper divisors (1).

202328639 is an equidigital number, since it uses as much as digits as its factorization.

202328639 is an odious number, because the sum of its binary digits is odd.

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

The square root of 202328639 is about 14224.2271846312. The cubic root of 202328639 is about 587.0644560630.

The spelling of 202328639 in words is "two hundred two million, three hundred twenty-eight thousand, six hundred thirty-nine".