71000906 has 8 divisors (see below), whose sum is σ = 106549344. Its totient is φ = 35484460.

The previous prime is 71000899. The next prime is 71000927. The reversal of 71000906 is 60900017.

It is a happy number.

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

It is a super-2 number, since 2×71000906² = 10082257305641672, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1340 + ... + 11991.

It is an arithmetic number, because the mean of its divisors is an integer number (13318668).

Almost surely, 2^71000906 is an apocalyptic number.

71000906 is a deficient number, since it is larger than the sum of its proper divisors (35548438).

71000906 is a wasteful number, since it uses less digits than its factorization.

71000906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15996.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 71000906 is about 8426.2035342140. The cubic root of 71000906 is about 414.0835362404.

The spelling of 71000906 in words is "seventy-one million, nine hundred six", and thus it is an aban number.