67322389 has 2 divisors, whose sum is σ = 67322390. Its totient is φ = 67322388.

The previous prime is 67322347. The next prime is 67322399. The reversal of 67322389 is 98322376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66292164 + 1030225 = 8142^2 + 1015^2 .

It is a cyclic number.

It is not a de Polignac number, because 67322389 - 2¹⁹ = 66798101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67322399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33661194 + 33661195.

It is an arithmetic number, because the mean of its divisors is an integer number (33661195).

Almost surely, 2^67322389 is an apocalyptic number.

It is an amenable number.

67322389 is a deficient number, since it is larger than the sum of its proper divisors (1).

67322389 is an equidigital number, since it uses as much as digits as its factorization.

67322389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 40.

The square root of 67322389 is about 8205.0221815666. The cubic root of 67322389 is about 406.8052099697.

The spelling of 67322389 in words is "sixty-seven million, three hundred twenty-two thousand, three hundred eighty-nine".