70440067 has 2 divisors, whose sum is σ = 70440068. Its totient is φ = 70440066.

The previous prime is 70440059. The next prime is 70440089. The reversal of 70440067 is 76004407.

It is a weak prime.

It is an emirp because it is prime and its reverse (76004407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70440067 - 2³ = 70440059 is a prime.

It is not a weakly prime, because it can be changed into another prime (70440017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35220033 + 35220034.

It is an arithmetic number, because the mean of its divisors is an integer number (35220034).

Almost surely, 2^70440067 is an apocalyptic number.

70440067 is a deficient number, since it is larger than the sum of its proper divisors (1).

70440067 is an equidigital number, since it uses as much as digits as its factorization.

70440067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 70440067 is about 8392.8580948328. The cubic root of 70440067 is about 412.9903653555.

The spelling of 70440067 in words is "seventy million, four hundred forty thousand, sixty-seven".