70381589 has 4 divisors (see below), whose sum is σ = 70439724. Its totient is φ = 70323456.

The previous prime is 70381537. The next prime is 70381603. The reversal of 70381589 is 98518307.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20566225 + 49815364 = 4535^2 + 7058^2 .

It is a cyclic number.

It is not a de Polignac number, because 70381589 - 2²⁰ = 69333013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70381489) 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, 27212 + ... + 29685.

It is an arithmetic number, because the mean of its divisors is an integer number (17609931).

Almost surely, 2^70381589 is an apocalyptic number.

It is an amenable number.

70381589 is a deficient number, since it is larger than the sum of its proper divisors (58135).

70381589 is a wasteful number, since it uses less digits than its factorization.

70381589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58134.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 70381589 is about 8389.3735761379. The cubic root of 70381589 is about 412.8760481405.

The spelling of 70381589 in words is "seventy million, three hundred eighty-one thousand, five hundred eighty-nine".