398453 has 12 divisors (see below), whose sum is σ = 454860. Its totient is φ = 348480.

The previous prime is 398441. The next prime is 398459. The reversal of 398453 is 354893.

It can be written as a sum of positive squares in 2 ways, for example, as 223729 + 174724 = 473^2 + 418^2 .

It is not a de Polignac number, because 398453 - 2¹⁰ = 397429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4433 + ... + 4521.

It is an arithmetic number, because the mean of its divisors is an integer number (37905).

2³⁹⁸⁴⁵³ is an apocalyptic number.

It is an amenable number.

398453 is a deficient number, since it is larger than the sum of its proper divisors (56407).

398453 is a wasteful number, since it uses less digits than its factorization.

398453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 137 counting only the distinct ones).

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

The square root of 398453 is about 631.2313363578. The cubic root of 398453 is about 73.5855206433.

The spelling of 398453 in words is "three hundred ninety-eight thousand, four hundred fifty-three".