398377 has 4 divisors (see below), whose sum is σ = 455296. Its totient is φ = 341460.

The previous prime is 398369. The next prime is 398393. The reversal of 398377 is 773893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773893 = 419 ⋅1847.

It is not a de Polignac number, because 398377 - 2³ = 398369 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (398347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28449 + ... + 28462.

It is an arithmetic number, because the mean of its divisors is an integer number (113824).

2³⁹⁸³⁷⁷ is an apocalyptic number.

It is an amenable number.

398377 is a deficient number, since it is larger than the sum of its proper divisors (56919).

398377 is an equidigital number, since it uses as much as digits as its factorization.

398377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56918.

The product of its digits is 31752, while the sum is 37.

The square root of 398377 is about 631.1711336872. The cubic root of 398377 is about 73.5808418354.

The spelling of 398377 in words is "three hundred ninety-eight thousand, three hundred seventy-seven".