43898 has 8 divisors (see below), whose sum is σ = 67392. Its totient is φ = 21436.

The previous prime is 43891. The next prime is 43913. The reversal of 43898 is 89834.

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

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43891) 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, 140 + ... + 327.

It is an arithmetic number, because the mean of its divisors is an integer number (8424).

2⁴³⁸⁹⁸ is an apocalyptic number.

43898 is a deficient number, since it is larger than the sum of its proper divisors (23494).

43898 is a wasteful number, since it uses less digits than its factorization.

43898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516.

The product of its digits is 6912, while the sum is 32.

The square root of 43898 is about 209.5184956036. The cubic root of 43898 is about 35.2761822817.

It can be divided in two parts, 438 and 98, that multiplied together give a palindrome (42924).

The spelling of 43898 in words is "forty-three thousand, eight hundred ninety-eight".