70420027 has 2 divisors, whose sum is σ = 70420028. Its totient is φ = 70420026.

The previous prime is 70419989. The next prime is 70420037. The reversal of 70420027 is 72002407.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70420027 - 2¹¹ = 70417979 is a prime.

It is not a weakly prime, because it can be changed into another prime (70420037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35210013 + 35210014.

It is an arithmetic number, because the mean of its divisors is an integer number (35210014).

Almost surely, 2^70420027 is an apocalyptic number.

70420027 is a deficient number, since it is larger than the sum of its proper divisors (1).

70420027 is an equidigital number, since it uses as much as digits as its factorization.

70420027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 70420027 is about 8391.6641377024. The cubic root of 70420027 is about 412.9511967769.

The spelling of 70420027 in words is "seventy million, four hundred twenty thousand, twenty-seven".