202343389 has 2 divisors, whose sum is σ = 202343390. Its totient is φ = 202343388.

The previous prime is 202343387. The next prime is 202343431. The reversal of 202343389 is 983343202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122544900 + 79798489 = 11070^2 + 8933^2 .

It is a cyclic number.

It is not a de Polignac number, because 202343389 - 2¹ = 202343387 is a prime.

Together with 202343387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202343381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101171694 + 101171695.

It is an arithmetic number, because the mean of its divisors is an integer number (101171695).

Almost surely, 2^202343389 is an apocalyptic number.

It is an amenable number.

202343389 is a deficient number, since it is larger than the sum of its proper divisors (1).

202343389 is an equidigital number, since it uses as much as digits as its factorization.

202343389 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 34.

The square root of 202343389 is about 14224.7456567771. The cubic root of 202343389 is about 587.0787216169.

The spelling of 202343389 in words is "two hundred two million, three hundred forty-three thousand, three hundred eighty-nine".