3834621 has 20 divisors (see below), whose sum is σ = 6547552. Its totient is φ = 2190888.

The previous prime is 3834619. The next prime is 3834631. The reversal of 3834621 is 1264383.

It is a happy number.

3834621 is a `hidden beast` number, since 3 + 8 + 34 + 621 = 666.

It is not a de Polignac number, because 3834621 - 2¹ = 3834619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3834601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2815 + ... + 3948.

Almost surely, 2^3834621 is an apocalyptic number.

It is an amenable number.

3834621 is a deficient number, since it is larger than the sum of its proper divisors (2712931).

3834621 is an equidigital number, since it uses as much as digits as its factorization.

3834621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782 (or 6773 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 3834621 is about 1958.2188335321. The cubic root of 3834621 is about 156.5215531701.

The spelling of 3834621 in words is "three million, eight hundred thirty-four thousand, six hundred twenty-one".