641892323 has 2 divisors, whose sum is σ = 641892324. Its totient is φ = 641892322.

The previous prime is 641892313. The next prime is 641892367. The reversal of 641892323 is 323298146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 641892323 - 2⁶ = 641892259 is a prime.

It is equal to p_33393935 and since 641892323 and 33393935 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (641892313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320946161 + 320946162.

It is an arithmetic number, because the mean of its divisors is an integer number (320946162).

Almost surely, 2^641892323 is an apocalyptic number.

641892323 is a deficient number, since it is larger than the sum of its proper divisors (1).

641892323 is an equidigital number, since it uses as much as digits as its factorization.

641892323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 641892323 is about 25335.5939934315. The cubic root of 641892323 is about 862.6223915931.

The spelling of 641892323 in words is "six hundred forty-one million, eight hundred ninety-two thousand, three hundred twenty-three".