398435 has 4 divisors (see below), whose sum is σ = 478128. Its totient is φ = 318744.

The previous prime is 398423. The next prime is 398441. The reversal of 398435 is 534893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 534893 = 107 ⋅4999.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398435 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39839 + ... + 39848.

It is an arithmetic number, because the mean of its divisors is an integer number (119532).

2³⁹⁸⁴³⁵ is an apocalyptic number.

398435 is a deficient number, since it is larger than the sum of its proper divisors (79693).

398435 is an equidigital number, since it uses as much as digits as its factorization.

398435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79692.

The product of its digits is 12960, while the sum is 32.

The square root of 398435 is about 631.2170783494. The cubic root of 398435 is about 73.5844125584.

The spelling of 398435 in words is "three hundred ninety-eight thousand, four hundred thirty-five".