3740621 has 4 divisors (see below), whose sum is σ = 3747744. Its totient is φ = 3733500.

The previous prime is 3740609. The next prime is 3740669. The reversal of 3740621 is 1260473.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3740621 - 2⁶ = 3740557 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 (3740021) 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, 2705 + ... + 3846.

It is an arithmetic number, because the mean of its divisors is an integer number (936936).

Almost surely, 2^3740621 is an apocalyptic number.

It is an amenable number.

3740621 is a deficient number, since it is larger than the sum of its proper divisors (7123).

3740621 is an equidigital number, since it uses as much as digits as its factorization.

3740621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 3740621 is about 1934.0685096449. The cubic root of 3740621 is about 155.2319939045.

The spelling of 3740621 in words is "three million, seven hundred forty thousand, six hundred twenty-one".