70441989 has 8 divisors (see below), whose sum is σ = 93963072. Its totient is φ = 46941120.

The previous prime is 70441963. The next prime is 70442023. The reversal of 70441989 is 98914407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70441989 - 2⁹ = 70441477 is a prime.

It is a super-2 number, since 2×70441989² = 9924147628552242, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70441989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70441289) 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 7 ways as a sum of consecutive naturals, for example, 7629 + ... + 14109.

It is an arithmetic number, because the mean of its divisors is an integer number (11745384).

Almost surely, 2^70441989 is an apocalyptic number.

It is an amenable number.

70441989 is a deficient number, since it is larger than the sum of its proper divisors (23521083).

70441989 is a wasteful number, since it uses less digits than its factorization.

70441989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10107.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 70441989 is about 8392.9725961664. The cubic root of 70441989 is about 412.9941215523.

The spelling of 70441989 in words is "seventy million, four hundred forty-one thousand, nine hundred eighty-nine".