9731398 has 4 divisors (see below), whose sum is σ = 14597100. Its totient is φ = 4865698.

The previous prime is 9731389. The next prime is 9731399. The reversal of 9731398 is 8931379.

9731398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8931379 = 31 ⋅288109.

It is a self number, because there is not a number n which added to its sum of digits gives 9731398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9731399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2432848 + ... + 2432851.

It is an arithmetic number, because the mean of its divisors is an integer number (3649275).

Almost surely, 2^9731398 is an apocalyptic number.

9731398 is a deficient number, since it is larger than the sum of its proper divisors (4865702).

9731398 is a wasteful number, since it uses less digits than its factorization.

9731398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4865701.

The product of its digits is 40824, while the sum is 40.

The square root of 9731398 is about 3119.5188731598. The cubic root of 9731398 is about 213.4969843464.

The spelling of 9731398 in words is "nine million, seven hundred thirty-one thousand, three hundred ninety-eight".