70444709 has 4 divisors (see below), whose sum is σ = 71436960. Its totient is φ = 69452460.

The previous prime is 70444697. The next prime is 70444711. The reversal of 70444709 is 90744407.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70444709 - 2⁸ = 70444453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70444739) 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 in 3 ways as a sum of consecutive naturals, for example, 496019 + ... + 496160.

It is an arithmetic number, because the mean of its divisors is an integer number (17859240).

Almost surely, 2^70444709 is an apocalyptic number.

It is an amenable number.

70444709 is a deficient number, since it is larger than the sum of its proper divisors (992251).

70444709 is an equidigital number, since it uses as much as digits as its factorization.

70444709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992250.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 70444709 is about 8393.1346349263. The cubic root of 70444709 is about 412.9994371771. Note that the first 3 decimals are identical.

The spelling of 70444709 in words is "seventy million, four hundred forty-four thousand, seven hundred nine".