70004071 has 2 divisors, whose sum is σ = 70004072. Its totient is φ = 70004070.

The previous prime is 70004069. The next prime is 70004089. The reversal of 70004071 is 17040007.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70004071 - 2¹ = 70004069 is a prime.

Together with 70004069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70004371) 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, 35002035 + 35002036.

It is an arithmetic number, because the mean of its divisors is an integer number (35002036).

Almost surely, 2^70004071 is an apocalyptic number.

70004071 is a deficient number, since it is larger than the sum of its proper divisors (1).

70004071 is an equidigital number, since it uses as much as digits as its factorization.

70004071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 70004071 is about 8366.8435505870. The cubic root of 70004071 is about 412.1365192319.

Adding to 70004071 its reverse (17040007), we get a palindrome (87044078).

The spelling of 70004071 in words is "seventy million, four thousand, seventy-one".