70844719 has 4 divisors (see below), whose sum is σ = 77285160. Its totient is φ = 64404280.

The previous prime is 70844713. The next prime is 70844731. The reversal of 70844719 is 91744807.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70844719 - 2²⁵ = 37290287 is a prime.

It is a super-2 number, since 2×70844719² = 10037948420377922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70844713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3220204 + ... + 3220225.

It is an arithmetic number, because the mean of its divisors is an integer number (19321290).

Almost surely, 2^70844719 is an apocalyptic number.

70844719 is a deficient number, since it is larger than the sum of its proper divisors (6440441).

70844719 is a wasteful number, since it uses less digits than its factorization.

70844719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440440.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 70844719 is about 8416.9304975151. The cubic root of 70844719 is about 413.7796812130.

The spelling of 70844719 in words is "seventy million, eight hundred forty-four thousand, seven hundred nineteen".