398832271 has 8 divisors (see below), whose sum is σ = 414224640. Its totient is φ = 383727768.

The previous prime is 398832241. The next prime is 398832277. The reversal of 398832271 is 172238893.

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

It is a cyclic number.

It is not a de Polignac number, because 398832271 - 2¹⁹ = 398307983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398832277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69141 + ... + 74686.

It is an arithmetic number, because the mean of its divisors is an integer number (51778080).

Almost surely, 2^398832271 is an apocalyptic number.

398832271 is a deficient number, since it is larger than the sum of its proper divisors (15392369).

398832271 is a wasteful number, since it uses less digits than its factorization.

398832271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143933.

The product of its digits is 145152, while the sum is 43.

The square root of 398832271 is about 19970.7854377338. The cubic root of 398832271 is about 736.0886091479.

The spelling of 398832271 in words is "three hundred ninety-eight million, eight hundred thirty-two thousand, two hundred seventy-one".