75820343 has 2 divisors, whose sum is σ = 75820344. Its totient is φ = 75820342.

The previous prime is 75820337. The next prime is 75820361. The reversal of 75820343 is 34302857.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (34302857) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75820343 - 2¹⁶ = 75754807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75820333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37910171 + 37910172.

It is an arithmetic number, because the mean of its divisors is an integer number (37910172).

Almost surely, 2^75820343 is an apocalyptic number.

75820343 is a deficient number, since it is larger than the sum of its proper divisors (1).

75820343 is an equidigital number, since it uses as much as digits as its factorization.

75820343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 75820343 is about 8707.4877548005. The cubic root of 75820343 is about 423.2483251854.

The spelling of 75820343 in words is "seventy-five million, eight hundred twenty thousand, three hundred forty-three".