70439345 has 8 divisors (see below), whose sum is σ = 84706560. Its totient is φ = 56231920.

The previous prime is 70439329. The next prime is 70439357. The reversal of 70439345 is 54393407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70439345 - 2⁴ = 70439329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12311 + ... + 17100.

It is an arithmetic number, because the mean of its divisors is an integer number (10588320).

Almost surely, 2^70439345 is an apocalyptic number.

It is an amenable number.

70439345 is a deficient number, since it is larger than the sum of its proper divisors (14267215).

70439345 is a wasteful number, since it uses less digits than its factorization.

70439345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29895.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 70439345 is about 8392.8150819615. The cubic root of 70439345 is about 412.9889543212.

The spelling of 70439345 in words is "seventy million, four hundred thirty-nine thousand, three hundred forty-five".