70222247 has 2 divisors, whose sum is σ = 70222248. Its totient is φ = 70222246.

The previous prime is 70222211. The next prime is 70222249. The reversal of 70222247 is 74222207.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70222247 - 2¹⁰ = 70221223 is a prime.

Together with 70222249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70222249) 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, 35111123 + 35111124.

It is an arithmetic number, because the mean of its divisors is an integer number (35111124).

Almost surely, 2^70222247 is an apocalyptic number.

70222247 is a deficient number, since it is larger than the sum of its proper divisors (1).

70222247 is an equidigital number, since it uses as much as digits as its factorization.

70222247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 70222247 is about 8379.8715383948. The cubic root of 70222247 is about 412.5642326666.

The spelling of 70222247 in words is "seventy million, two hundred twenty-two thousand, two hundred forty-seven".