70421167 has 2 divisors, whose sum is σ = 70421168. Its totient is φ = 70421166.

The previous prime is 70421159. The next prime is 70421171. The reversal of 70421167 is 76112407.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70421167 - 2³ = 70421159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70421107) 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, 35210583 + 35210584.

It is an arithmetic number, because the mean of its divisors is an integer number (35210584).

Almost surely, 2^70421167 is an apocalyptic number.

70421167 is a deficient number, since it is larger than the sum of its proper divisors (1).

70421167 is an equidigital number, since it uses as much as digits as its factorization.

70421167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 70421167 is about 8391.7320619762. The cubic root of 70421167 is about 412.9534251289.

The spelling of 70421167 in words is "seventy million, four hundred twenty-one thousand, one hundred sixty-seven".