9071998 has 8 divisors (see below), whose sum is σ = 14654808. Its totient is φ = 4187064.

The previous prime is 9071989. The next prime is 9072031. The reversal of 9071998 is 8991709.

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

It is a super-2 number, since 2×9071998² = 164602295424008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174436 + ... + 174487.

It is an arithmetic number, because the mean of its divisors is an integer number (1831851).

Almost surely, 2^9071998 is an apocalyptic number.

9071998 is a deficient number, since it is larger than the sum of its proper divisors (5582810).

9071998 is a wasteful number, since it uses less digits than its factorization.

9071998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348938.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 9071998 is about 3011.9757635147. The cubic root of 9071998 is about 208.5615833668.

The spelling of 9071998 in words is "nine million, seventy-one thousand, nine hundred ninety-eight".