398894171 has 8 divisors (see below), whose sum is σ = 454847904. Its totient is φ = 346550400.

The previous prime is 398894063. The next prime is 398894183. The reversal of 398894171 is 171498893.

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 398894171 - 2²² = 394699867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398894191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902255 + ... + 902696.

It is an arithmetic number, because the mean of its divisors is an integer number (56855988).

Almost surely, 2^398894171 is an apocalyptic number.

398894171 is a deficient number, since it is larger than the sum of its proper divisors (55953733).

398894171 is a wasteful number, since it uses less digits than its factorization.

398894171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804981.

The product of its digits is 435456, while the sum is 50.

The square root of 398894171 is about 19972.3351413900. The cubic root of 398894171 is about 736.1266882530.

The spelling of 398894171 in words is "three hundred ninety-eight million, eight hundred ninety-four thousand, one hundred seventy-one".