70444579 has 4 divisors (see below), whose sum is σ = 71773776. Its totient is φ = 69115384.

The previous prime is 70444529. The next prime is 70444613. The reversal of 70444579 is 97544407.

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 70444579 - 2¹¹ = 70442531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70444529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664519 + ... + 664624.

It is an arithmetic number, because the mean of its divisors is an integer number (17943444).

Almost surely, 2^70444579 is an apocalyptic number.

70444579 is a deficient number, since it is larger than the sum of its proper divisors (1329197).

70444579 is a wasteful number, since it uses less digits than its factorization.

70444579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329196.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 70444579 is about 8393.1268904980. The cubic root of 70444579 is about 412.9991831247. Note that the first 3 decimals are identical.

The spelling of 70444579 in words is "seventy million, four hundred forty-four thousand, five hundred seventy-nine".