71380965 has 8 divisors (see below), whose sum is σ = 114209568. Its totient is φ = 38069840.

The previous prime is 71380963. The next prime is 71380987. The reversal of 71380965 is 56908317.

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

It is not a de Polignac number, because 71380965 - 2¹ = 71380963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71380963) 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, 2379351 + ... + 2379380.

It is an arithmetic number, because the mean of its divisors is an integer number (14276196).

Almost surely, 2^71380965 is an apocalyptic number.

It is an amenable number.

71380965 is a deficient number, since it is larger than the sum of its proper divisors (42828603).

71380965 is a wasteful number, since it uses less digits than its factorization.

71380965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758739.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 71380965 is about 8448.7256435512. The cubic root of 71380965 is about 414.8210676825.

The spelling of 71380965 in words is "seventy-one million, three hundred eighty thousand, nine hundred sixty-five".