3784001 has 4 divisors (see below), whose sum is σ = 4075092. Its totient is φ = 3492912.

The previous prime is 3783991. The next prime is 3784003. The reversal of 3784001 is 1004873.

3784001 = 1375² + 1376².

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1890625 + 1893376 = 1375^2 + 1376^2 .

It is a cyclic number.

It is not a de Polignac number, because 3784001 - 2¹⁸ = 3521857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3784003) 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, 145526 + ... + 145551.

It is an arithmetic number, because the mean of its divisors is an integer number (1018773).

Almost surely, 2^3784001 is an apocalyptic number.

3784001 is the 1376-th centered square number.

It is an amenable number.

3784001 is a deficient number, since it is larger than the sum of its proper divisors (291091).

3784001 is a wasteful number, since it uses less digits than its factorization.

3784001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291090.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3784001 is about 1945.2508835623. The cubic root of 3784001 is about 155.8297644399.

Adding to 3784001 its reverse (1004873), we get a palindrome (4788874).

The spelling of 3784001 in words is "three million, seven hundred eighty-four thousand, one".