70985444 has 24 divisors (see below), whose sum is σ = 133237440. Its totient is φ = 32988384.

The previous prime is 70985441. The next prime is 70985449. The reversal of 70985444 is 44458907.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (70985441) 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 in 7 ways as a sum of consecutive naturals, for example, 4784 + ... + 12839.

It is an arithmetic number, because the mean of its divisors is an integer number (5551560).

Almost surely, 2^70985444 is an apocalyptic number.

It is an amenable number.

70985444 is a deficient number, since it is larger than the sum of its proper divisors (62251996).

70985444 is a wasteful number, since it uses less digits than its factorization.

70985444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17699 (or 17697 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 70985444 is about 8425.2859892113. The cubic root of 70985444 is about 414.0534754763.

The spelling of 70985444 in words is "seventy million, nine hundred eighty-five thousand, four hundred forty-four".