70830427 has 2 divisors, whose sum is σ = 70830428. Its totient is φ = 70830426.

The previous prime is 70830401. The next prime is 70830433. The reversal of 70830427 is 72403807.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70830427 - 2⁷ = 70830299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70830437) 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, 35415213 + 35415214.

It is an arithmetic number, because the mean of its divisors is an integer number (35415214).

Almost surely, 2^70830427 is an apocalyptic number.

70830427 is a deficient number, since it is larger than the sum of its proper divisors (1).

70830427 is an equidigital number, since it uses as much as digits as its factorization.

70830427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 70830427 is about 8416.0814516020. The cubic root of 70830427 is about 413.7518544533.

The spelling of 70830427 in words is "seventy million, eight hundred thirty thousand, four hundred twenty-seven".