71380067 has 16 divisors (see below), whose sum is σ = 80757600. Its totient is φ = 62519040.

The previous prime is 71380061. The next prime is 71380079. The reversal of 71380067 is 76008317.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 71380067 - 2⁴ = 71380051 is a prime.

It is a super-2 number, since 2×71380067² = 10190227929848978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71380061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43559 + ... + 45167.

It is an arithmetic number, because the mean of its divisors is an integer number (5047350).

Almost surely, 2^71380067 is an apocalyptic number.

71380067 is a deficient number, since it is larger than the sum of its proper divisors (9377533).

71380067 is a wasteful number, since it uses less digits than its factorization.

71380067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 71380067 is about 8448.6724992747. The cubic root of 71380067 is about 414.8193281390.

The spelling of 71380067 in words is "seventy-one million, three hundred eighty thousand, sixty-seven".