9971398 has 8 divisors (see below), whose sum is σ = 15439680. Its totient is φ = 4824840.

The previous prime is 9971393. The next prime is 9971407. The reversal of 9971398 is 8931799.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9971393) 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, 80353 + ... + 80476.

It is an arithmetic number, because the mean of its divisors is an integer number (1929960).

Almost surely, 2^9971398 is an apocalyptic number.

9971398 is a deficient number, since it is larger than the sum of its proper divisors (5468282).

9971398 is a wasteful number, since it uses less digits than its factorization.

9971398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160862.

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

The square root of 9971398 is about 3157.7520485307. The cubic root of 9971398 is about 215.2378690561.

The spelling of 9971398 in words is "nine million, nine hundred seventy-one thousand, three hundred ninety-eight".