70738219 has 2 divisors, whose sum is σ = 70738220. Its totient is φ = 70738218.

The previous prime is 70738201. The next prime is 70738231. The reversal of 70738219 is 91283707.

It is a strong prime.

It is an emirp because it is prime and its reverse (91283707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70738219 - 2¹⁹ = 70213931 is a prime.

It is a super-2 number, since 2×70738219² = 10007791254583922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70738289) 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, 35369109 + 35369110.

It is an arithmetic number, because the mean of its divisors is an integer number (35369110).

Almost surely, 2^70738219 is an apocalyptic number.

70738219 is a deficient number, since it is larger than the sum of its proper divisors (1).

70738219 is an equidigital number, since it uses as much as digits as its factorization.

70738219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 70738219 is about 8410.6015837156. The cubic root of 70738219 is about 413.5722339152.

The spelling of 70738219 in words is "seventy million, seven hundred thirty-eight thousand, two hundred nineteen".