434398 has 4 divisors (see below), whose sum is σ = 651600. Its totient is φ = 217198.

The previous prime is 434389. The next prime is 434407. The reversal of 434398 is 893434.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893434 = 2 ⋅446717.

It is an interprime number because it is at equal distance from previous prime (434389) and next prime (434407).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108598 + ... + 108601.

It is an arithmetic number, because the mean of its divisors is an integer number (162900).

2⁴³⁴³⁹⁸ is an apocalyptic number.

434398 is a deficient number, since it is larger than the sum of its proper divisors (217202).

434398 is a wasteful number, since it uses less digits than its factorization.

434398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217201.

The product of its digits is 10368, while the sum is 31.

The square root of 434398 is about 659.0887648868. The cubic root of 434398 is about 75.7348795462.

The spelling of 434398 in words is "four hundred thirty-four thousand, three hundred ninety-eight".