56398 has 8 divisors (see below), whose sum is σ = 85608. Its totient is φ = 27864.

The previous prime is 56393. The next prime is 56401. The reversal of 56398 is 89365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240 + ... + 412.

It is an arithmetic number, because the mean of its divisors is an integer number (10701).

2⁵⁶³⁹⁸ is an apocalyptic number.

56398 is a deficient number, since it is larger than the sum of its proper divisors (29210).

56398 is a wasteful number, since it uses less digits than its factorization.

56398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338.

The product of its digits is 6480, while the sum is 31.

The square root of 56398 is about 237.4826309438. The cubic root of 56398 is about 38.3490462784.

It can be divided in two parts, 56 and 398, that added together give a palindrome (454).

The spelling of 56398 in words is "fifty-six thousand, three hundred ninety-eight".