70440841 has 2 divisors, whose sum is σ = 70440842. Its totient is φ = 70440840.

The previous prime is 70440781. The next prime is 70440857. The reversal of 70440841 is 14804407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62346816 + 8094025 = 7896^2 + 2845^2 .

It is an emirp because it is prime and its reverse (14804407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70440841 - 2¹¹ = 70438793 is a prime.

It is not a weakly prime, because it can be changed into another prime (70440241) 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 as a sum of consecutive naturals, namely, 35220420 + 35220421.

It is an arithmetic number, because the mean of its divisors is an integer number (35220421).

Almost surely, 2^70440841 is an apocalyptic number.

It is an amenable number.

70440841 is a deficient number, since it is larger than the sum of its proper divisors (1).

70440841 is an equidigital number, since it uses as much as digits as its factorization.

70440841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 70440841 is about 8392.9042053392. The cubic root of 70440841 is about 412.9918780049.

The spelling of 70440841 in words is "seventy million, four hundred forty thousand, eight hundred forty-one".