71000998 has 8 divisors (see below), whose sum is σ = 108978408. Its totient is φ = 34674864.

The previous prime is 71000987. The next prime is 71000999. The reversal of 71000998 is 89900017.

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

It is a super-2 number, since 2×71000998² = 10082283433992008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71000999) 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, 412711 + ... + 412882.

It is an arithmetic number, because the mean of its divisors is an integer number (13622301).

Almost surely, 2^71000998 is an apocalyptic number.

71000998 is a deficient number, since it is larger than the sum of its proper divisors (37977410).

71000998 is a wasteful number, since it uses less digits than its factorization.

71000998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825638.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 71000998 is about 8426.2089933730. The cubic root of 71000998 is about 414.0837150910.

The spelling of 71000998 in words is "seventy-one million, nine hundred ninety-eight", and thus it is an aban number.