70067449 has 2 divisors, whose sum is σ = 70067450. Its totient is φ = 70067448.

The previous prime is 70067447. The next prime is 70067477. The reversal of 70067449 is 94476007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65367225 + 4700224 = 8085^2 + 2168^2 .

It is a cyclic number.

It is not a de Polignac number, because 70067449 - 2¹ = 70067447 is a prime.

Together with 70067447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (70067441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35033724 + 35033725.

It is an arithmetic number, because the mean of its divisors is an integer number (35033725).

Almost surely, 2^70067449 is an apocalyptic number.

It is an amenable number.

70067449 is a deficient number, since it is larger than the sum of its proper divisors (1).

70067449 is an equidigital number, since it uses as much as digits as its factorization.

70067449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 70067449 is about 8370.6301435436. The cubic root of 70067449 is about 412.2608572846.

The spelling of 70067449 in words is "seventy million, sixty-seven thousand, four hundred forty-nine".