9137998 has 8 divisors (see below), whose sum is σ = 14041440. Its totient is φ = 4457520.

The previous prime is 9137981. The next prime is 9138007. The reversal of 9137998 is 8997319.

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

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, 55638 + ... + 55801.

It is an arithmetic number, because the mean of its divisors is an integer number (1755180).

Almost surely, 2^9137998 is an apocalyptic number.

9137998 is a deficient number, since it is larger than the sum of its proper divisors (4903442).

9137998 is a wasteful number, since it uses less digits than its factorization.

9137998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111482.

The product of its digits is 122472, while the sum is 46.

The square root of 9137998 is about 3022.9121720619. The cubic root of 9137998 is about 209.0661329295.

It can be divided in two parts, 913 and 7998, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 9137998 in words is "nine million, one hundred thirty-seven thousand, nine hundred ninety-eight".