70223663 has 2 divisors, whose sum is σ = 70223664. Its totient is φ = 70223662.

The previous prime is 70223609. The next prime is 70223683. The reversal of 70223663 is 36632207.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70223663 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70223683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35111831 + 35111832.

It is an arithmetic number, because the mean of its divisors is an integer number (35111832).

Almost surely, 2^70223663 is an apocalyptic number.

70223663 is a deficient number, since it is larger than the sum of its proper divisors (1).

70223663 is an equidigital number, since it uses as much as digits as its factorization.

70223663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 70223663 is about 8379.9560261376. The cubic root of 70223663 is about 412.5670057053.

The spelling of 70223663 in words is "seventy million, two hundred twenty-three thousand, six hundred sixty-three".