70443841 has 4 divisors (see below), whose sum is σ = 75862612. Its totient is φ = 65025072.

The previous prime is 70443829. The next prime is 70443853. The reversal of 70443841 is 14834407.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (70443829) and next prime (70443853).

It can be written as a sum of positive squares in 2 ways, for example, as 27081616 + 43362225 = 5204^2 + 6585^2 .

It is a cyclic number.

It is not a de Polignac number, because 70443841 - 2⁷ = 70443713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70443341) 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 3 ways as a sum of consecutive naturals, for example, 2709366 + ... + 2709391.

It is an arithmetic number, because the mean of its divisors is an integer number (18965653).

Almost surely, 2^70443841 is an apocalyptic number.

It is an amenable number.

70443841 is a deficient number, since it is larger than the sum of its proper divisors (5418771).

70443841 is a wasteful number, since it uses less digits than its factorization.

70443841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5418770.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 70443841 is about 8393.0829258384. The cubic root of 70443841 is about 412.9977408823.

The spelling of 70443841 in words is "seventy million, four hundred forty-three thousand, eight hundred forty-one".