3746821 has 8 divisors (see below), whose sum is σ = 4050144. Its totient is φ = 3445680.

The previous prime is 3746801. The next prime is 3746837. The reversal of 3746821 is 1286473.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3746821 - 2⁵ = 3746789 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 (3746801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6090 + ... + 6676.

It is an arithmetic number, because the mean of its divisors is an integer number (506268).

Almost surely, 2^3746821 is an apocalyptic number.

It is an amenable number.

3746821 is a deficient number, since it is larger than the sum of its proper divisors (303323).

3746821 is a wasteful number, since it uses less digits than its factorization.

3746821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091.

The product of its digits is 8064, while the sum is 31.

The square root of 3746821 is about 1935.6706848015. The cubic root of 3746821 is about 155.3177111434.

The spelling of 3746821 in words is "three million, seven hundred forty-six thousand, eight hundred twenty-one".