71000747 has 16 divisors (see below), whose sum is σ = 75694080. Its totient is φ = 66461472.

The previous prime is 71000731. The next prime is 71000753. The reversal of 71000747 is 74700017.

It is a cyclic number.

It is not a de Polignac number, because 71000747 - 2⁴ = 71000731 is a prime.

It is a super-2 number, since 2×71000747² = 10082212149116018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71000707) 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, 318278 + ... + 318500.

It is an arithmetic number, because the mean of its divisors is an integer number (4730880).

Almost surely, 2^71000747 is an apocalyptic number.

71000747 is a deficient number, since it is larger than the sum of its proper divisors (4693333).

71000747 is a wasteful number, since it uses less digits than its factorization.

71000747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its (nonzero) digits is 1372, while the sum is 26.

The square root of 71000747 is about 8426.1940993547. The cubic root of 71000747 is about 414.0832271395.

The spelling of 71000747 in words is "seventy-one million, seven hundred forty-seven", and thus it is an aban number.