70043073 has 32 divisors (see below), whose sum is σ = 100531200. Its totient is φ = 43281216.

The previous prime is 70043069. The next prime is 70043081. The reversal of 70043073 is 37034007.

It is not a de Polignac number, because 70043073 - 2² = 70043069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70043023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 503838 + ... + 503976.

It is an arithmetic number, because the mean of its divisors is an integer number (3141600).

Almost surely, 2^70043073 is an apocalyptic number.

It is an amenable number.

70043073 is a deficient number, since it is larger than the sum of its proper divisors (30488127).

70043073 is a wasteful number, since it uses less digits than its factorization.

70043073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 70043073 is about 8369.1739735771. The cubic root of 70043073 is about 412.2130441351.

The spelling of 70043073 in words is "seventy million, forty-three thousand, seventy-three".