67410989 has 2 divisors, whose sum is σ = 67410990. Its totient is φ = 67410988.

The previous prime is 67410949. The next prime is 67410991. The reversal of 67410989 is 98901476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67404100 + 6889 = 8210^2 + 83^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67410989 is a prime.

It is a Sophie Germain prime.

Together with 67410991, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67410919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33705494 + 33705495.

It is an arithmetic number, because the mean of its divisors is an integer number (33705495).

Almost surely, 2^67410989 is an apocalyptic number.

It is an amenable number.

67410989 is a deficient number, since it is larger than the sum of its proper divisors (1).

67410989 is an equidigital number, since it uses as much as digits as its factorization.

67410989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 67410989 is about 8210.4195386107. The cubic root of 67410989 is about 406.9835911501.

The spelling of 67410989 in words is "sixty-seven million, four hundred ten thousand, nine hundred eighty-nine".