70442719 has 2 divisors, whose sum is σ = 70442720. Its totient is φ = 70442718.

The previous prime is 70442689. The next prime is 70442791. The reversal of 70442719 is 91724407.

Together with next prime (70442791) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70442719 - 2¹³ = 70434527 is a prime.

It is a super-2 number, since 2×70442719² = 9924353320225922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70472719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35221359 + 35221360.

It is an arithmetic number, because the mean of its divisors is an integer number (35221360).

Almost surely, 2^70442719 is an apocalyptic number.

70442719 is a deficient number, since it is larger than the sum of its proper divisors (1).

70442719 is an equidigital number, since it uses as much as digits as its factorization.

70442719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 70442719 is about 8393.0160848172. The cubic root of 70442719 is about 412.9955481857.

The spelling of 70442719 in words is "seventy million, four hundred forty-two thousand, seven hundred nineteen".