71000067 has 4 divisors (see below), whose sum is σ = 94666760. Its totient is φ = 47333376.

The previous prime is 71000051. The next prime is 71000081. The reversal of 71000067 is 76000017.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76000017 = 3 ⋅25333339.

It is not a de Polignac number, because 71000067 - 2⁴ = 71000051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71000087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11833342 + ... + 11833347.

It is an arithmetic number, because the mean of its divisors is an integer number (23666690).

Almost surely, 2^71000067 is an apocalyptic number.

71000067 is a deficient number, since it is larger than the sum of its proper divisors (23666693).

71000067 is a wasteful number, since it uses less digits than its factorization.

71000067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23666692.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 71000067 is about 8426.1537488940. The cubic root of 71000067 is about 414.0819051933.

The spelling of 71000067 in words is "seventy-one million, sixty-seven", and thus it is an aban number and an uban number.