70319443 has 4 divisors (see below), whose sum is σ = 70344280. Its totient is φ = 70294608.

The previous prime is 70319383. The next prime is 70319453. The reversal of 70319443 is 34491307.

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 70319443 - 2²¹ = 68222291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70319453) 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, 7530 + ... + 14047.

It is an arithmetic number, because the mean of its divisors is an integer number (17586070).

Almost surely, 2^70319443 is an apocalyptic number.

70319443 is a deficient number, since it is larger than the sum of its proper divisors (24837).

70319443 is a wasteful number, since it uses less digits than its factorization.

70319443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24836.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 70319443 is about 8385.6689059371. The cubic root of 70319443 is about 412.7544910163.

The spelling of 70319443 in words is "seventy million, three hundred nineteen thousand, four hundred forty-three".