70000027 has 2 divisors, whose sum is σ = 70000028. Its totient is φ = 70000026.

The previous prime is 69999989. The next prime is 70000037. The reversal of 70000027 is 72000007.

It is a strong prime.

It is an emirp because it is prime and its reverse (72000007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70000027 - 2⁷ = 69999899 is a prime.

It is not a weakly prime, because it can be changed into another prime (70000037) 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, 35000013 + 35000014.

It is an arithmetic number, because the mean of its divisors is an integer number (35000014).

Almost surely, 2^70000027 is an apocalyptic number.

70000027 is a deficient number, since it is larger than the sum of its proper divisors (1).

70000027 is an equidigital number, since it uses as much as digits as its factorization.

70000027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98, while the sum is 16.

The square root of 70000027 is about 8366.6018788992. The cubic root of 70000027 is about 412.1285829688.

The spelling of 70000027 in words is "seventy million, twenty-seven", and thus it is an aban number and an uban number.