70443785 has 4 divisors (see below), whose sum is σ = 84532548. Its totient is φ = 56355024.

The previous prime is 70443743. The next prime is 70443799. The reversal of 70443785 is 58734407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58734407 = 233 ⋅252079.

It can be written as a sum of positive squares in 2 ways, for example, as 14807104 + 55636681 = 3848^2 + 7459^2 .

It is a cyclic number.

It is not a de Polignac number, because 70443785 - 2⁶ = 70443721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7044374 + ... + 7044383.

It is an arithmetic number, because the mean of its divisors is an integer number (21133137).

Almost surely, 2^70443785 is an apocalyptic number.

It is an amenable number.

70443785 is a deficient number, since it is larger than the sum of its proper divisors (14088763).

70443785 is a wasteful number, since it uses less digits than its factorization.

70443785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14088762.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 70443785 is about 8393.0795897573. The cubic root of 70443785 is about 412.9976314435.

The spelling of 70443785 in words is "seventy million, four hundred forty-three thousand, seven hundred eighty-five".