3824789 has 4 divisors (see below), whose sum is σ = 3828780. Its totient is φ = 3820800.

The previous prime is 3824771. The next prime is 3824827. The reversal of 3824789 is 9874283.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9874283 = 89 ⋅110947.

It can be written as a sum of positive squares in 2 ways, for example, as 2739025 + 1085764 = 1655^2 + 1042^2 .

It is a cyclic number.

It is not a de Polignac number, because 3824789 - 2¹⁶ = 3759253 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 (3824729) 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, 407 + ... + 2795.

It is an arithmetic number, because the mean of its divisors is an integer number (957195).

Almost surely, 2^3824789 is an apocalyptic number.

It is an amenable number.

3824789 is a deficient number, since it is larger than the sum of its proper divisors (3991).

3824789 is a wasteful number, since it uses less digits than its factorization.

3824789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990.

The product of its digits is 96768, while the sum is 41.

The square root of 3824789 is about 1955.7067776126. The cubic root of 3824789 is about 156.3876644880.

The spelling of 3824789 in words is "three million, eight hundred twenty-four thousand, seven hundred eighty-nine".