71380389 has 8 divisors (see below), whose sum is σ = 95657760. Its totient is φ = 47344976.

The previous prime is 71380373. The next prime is 71380411. The reversal of 71380389 is 98308317.

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

It is a cyclic number.

It is not a de Polignac number, because 71380389 - 2⁴ = 71380373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71380369) 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, 59799 + ... + 60980.

It is an arithmetic number, because the mean of its divisors is an integer number (11957220).

Almost surely, 2^71380389 is an apocalyptic number.

It is an amenable number.

71380389 is a deficient number, since it is larger than the sum of its proper divisors (24277371).

71380389 is a wasteful number, since it uses less digits than its factorization.

71380389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120979.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 71380389 is about 8448.6915555014. The cubic root of 71380389 is about 414.8199518968.

The spelling of 71380389 in words is "seventy-one million, three hundred eighty thousand, three hundred eighty-nine".