70844671 has 2 divisors, whose sum is σ = 70844672. Its totient is φ = 70844670.

The previous prime is 70844563. The next prime is 70844707. The reversal of 70844671 is 17644807.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70844671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70844671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70844471) 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, 35422335 + 35422336.

It is an arithmetic number, because the mean of its divisors is an integer number (35422336).

Almost surely, 2^70844671 is an apocalyptic number.

70844671 is a deficient number, since it is larger than the sum of its proper divisors (1).

70844671 is an equidigital number, since it uses as much as digits as its factorization.

70844671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 70844671 is about 8416.9276461189. The cubic root of 70844671 is about 413.7795877625.

The spelling of 70844671 in words is "seventy million, eight hundred forty-four thousand, six hundred seventy-one".