70073443 has 4 divisors (see below), whose sum is σ = 76443768. Its totient is φ = 63703120.

The previous prime is 70073441. The next prime is 70073453. The reversal of 70073443 is 34437007.

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 70073443 - 2¹ = 70073441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70073441) 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, 3185146 + ... + 3185167.

It is an arithmetic number, because the mean of its divisors is an integer number (19110942).

Almost surely, 2^70073443 is an apocalyptic number.

70073443 is a deficient number, since it is larger than the sum of its proper divisors (6370325).

70073443 is a wasteful number, since it uses less digits than its factorization.

70073443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6370324.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 70073443 is about 8370.9881734476. The cubic root of 70073443 is about 412.2726127248.

The spelling of 70073443 in words is "seventy million, seventy-three thousand, four hundred forty-three".