398774311 has 8 divisors (see below), whose sum is σ = 429607584. Its totient is φ = 367963680.

The previous prime is 398774291. The next prime is 398774329. The reversal of 398774311 is 113477893.

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 398774311 - 2⁹ = 398773799 is a prime.

It is a super-2 number, since 2×398774311² = 318041902227049442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398774371) 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, 55326 + ... + 62116.

It is an arithmetic number, because the mean of its divisors is an integer number (53700948).

Almost surely, 2^398774311 is an apocalyptic number.

398774311 is a deficient number, since it is larger than the sum of its proper divisors (30833273).

398774311 is a wasteful number, since it uses less digits than its factorization.

398774311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11321.

The product of its digits is 127008, while the sum is 43.

The square root of 398774311 is about 19969.3342653179. The cubic root of 398774311 is about 736.0529502459.

The spelling of 398774311 in words is "three hundred ninety-eight million, seven hundred seventy-four thousand, three hundred eleven".