70327989 has 6 divisors (see below), whose sum is σ = 101584886. Its totient is φ = 46885320.

The previous prime is 70327973. The next prime is 70328003. The reversal of 70327989 is 98972307.

It can be written as a sum of positive squares in only one way, i.e., 61074225 + 9253764 = 7815^2 + 3042^2 .

It is not a de Polignac number, because 70327989 - 2⁴ = 70327973 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 (70327909) 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 5 ways as a sum of consecutive naturals, for example, 3907102 + ... + 3907119.

Almost surely, 2^70327989 is an apocalyptic number.

It is an amenable number.

70327989 is a deficient number, since it is larger than the sum of its proper divisors (31256897).

70327989 is a wasteful number, since it uses less digits than its factorization.

70327989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7814227 (or 7814224 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 70327989 is about 8386.1784502835. The cubic root of 70327989 is about 412.7712111762.

The spelling of 70327989 in words is "seventy million, three hundred twenty-seven thousand, nine hundred eighty-nine".