67485389 has 2 divisors, whose sum is σ = 67485390. Its totient is φ = 67485388.

The previous prime is 67485371. The next prime is 67485403. The reversal of 67485389 is 98358476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58782889 + 8702500 = 7667^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 67485389 - 2¹⁶ = 67419853 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67487389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33742694 + 33742695.

It is an arithmetic number, because the mean of its divisors is an integer number (33742695).

Almost surely, 2^67485389 is an apocalyptic number.

It is an amenable number.

67485389 is a deficient number, since it is larger than the sum of its proper divisors (1).

67485389 is an equidigital number, since it uses as much as digits as its factorization.

67485389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 50.

The square root of 67485389 is about 8214.9491173105. The cubic root of 67485389 is about 407.1332623279.

The spelling of 67485389 in words is "sixty-seven million, four hundred eighty-five thousand, three hundred eighty-nine".