Search a number
3789 = 32421
BaseRepresentation
bin111011001101
312012100
4323031
5110124
625313
714022
oct7315
95170
103789
112935
122239
131956
141549
1511c9
hexecd

3789 has 6 divisors (see below), whose sum is σ = 5486. Its totient is φ = 2520.

The previous prime is 3779. The next prime is 3793. The reversal of 3789 is 9873.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2025 + 1764 = 45^2 + 42^2 .

It is not a de Polignac number, because 3789 - 28 = 3533 is a prime.

It is a Duffinian number.

3789 is a lucky number.

It is a plaindrome in base 10 and base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 202 + ... + 219.

23789 is an apocalyptic number.

It is an amenable number.

3789 is a deficient number, since it is larger than the sum of its proper divisors (1697).

3789 is a wasteful number, since it uses less digits than its factorization.

3789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 424 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 3789 is about 61.5548535860. The cubic root of 3789 is about 15.5898355877.

Subtracting 3789 from its reverse (9873), we obtain a square (6084 = 782).

The spelling of 3789 in words is "three thousand, seven hundred eighty-nine".

Divisors: 1 3 9 421 1263 3789