43821798 has 8 divisors (see below), whose sum is σ = 87643608. Its totient is φ = 14607264.

The previous prime is 43821793. The next prime is 43821803. The reversal of 43821798 is 89712834.

It is an interprime number because it is at equal distance from previous prime (43821793) and next prime (43821803).

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

43821798 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43821793) 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, 3651811 + ... + 3651822.

It is an arithmetic number, because the mean of its divisors is an integer number (10955451).

Almost surely, 2^43821798 is an apocalyptic number.

43821798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43821798 is a wasteful number, since it uses less digits than its factorization.

43821798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303638.

The product of its digits is 96768, while the sum is 42.

The square root of 43821798 is about 6619.8034714031. The cubic root of 43821798 is about 352.5575862863.

The spelling of 43821798 in words is "forty-three million, eight hundred twenty-one thousand, seven hundred ninety-eight".