3689784 has 48 divisors (see below), whose sum is σ = 11422320. Its totient is φ = 1054080.

The previous prime is 3689779. The next prime is 3689797. The reversal of 3689784 is 4879863.

It is a happy number.

It is a super-2 number, since 2×3689784² = 27229011933312, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3157 + ... + 4164.

It is an arithmetic number, because the mean of its divisors is an integer number (237965).

Almost surely, 2^3689784 is an apocalyptic number.

It is an amenable number.

3689784 is an abundant number, since it is smaller than the sum of its proper divisors (7732536).

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

3689784 is a wasteful number, since it uses less digits than its factorization.

3689784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7340 (or 7333 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 3689784 is about 1920.8810478528. The cubic root of 3689784 is about 154.5255558316.

The spelling of 3689784 in words is "three million, six hundred eighty-nine thousand, seven hundred eighty-four".