3746621 has 4 divisors (see below), whose sum is σ = 3838044. Its totient is φ = 3655200.

The previous prime is 3746593. The next prime is 3746641. The reversal of 3746621 is 1266473.

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 1466521 + 2280100 = 1211^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 3746621 - 2⁶ = 3746557 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 (3746641) 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 3 ways as a sum of consecutive naturals, for example, 45650 + ... + 45731.

It is an arithmetic number, because the mean of its divisors is an integer number (959511).

Almost surely, 2^3746621 is an apocalyptic number.

It is an amenable number.

3746621 is a deficient number, since it is larger than the sum of its proper divisors (91423).

3746621 is an equidigital number, since it uses as much as digits as its factorization.

3746621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91422.

The product of its digits is 6048, while the sum is 29.

The square root of 3746621 is about 1935.6190224318. The cubic root of 3746621 is about 155.3149475477.

The spelling of 3746621 in words is "three million, seven hundred forty-six thousand, six hundred twenty-one".