3744621 has 12 divisors (see below), whose sum is σ = 5450172. Its totient is φ = 2477376.

The previous prime is 3744619. The next prime is 3744623. The reversal of 3744621 is 1264473.

3744621 is a `hidden beast` number, since 37 + 4 + 4 + 621 = 666.

It is an interprime number because it is at equal distance from previous prime (3744619) and next prime (3744623).

It can be written as a sum of positive squares in 2 ways, for example, as 2722500 + 1022121 = 1650^2 + 1011^2 .

It is not a de Polignac number, because 3744621 - 2¹ = 3744619 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3744623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 286 + ... + 2751.

It is an arithmetic number, because the mean of its divisors is an integer number (454181).

Almost surely, 2^3744621 is an apocalyptic number.

It is an amenable number.

3744621 is a deficient number, since it is larger than the sum of its proper divisors (1705551).

3744621 is a wasteful number, since it uses less digits than its factorization.

3744621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180 (or 3177 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 3744621 is about 1935.1023228760. The cubic root of 3744621 is about 155.2873061801.

The spelling of 3744621 in words is "three million, seven hundred forty-four thousand, six hundred twenty-one".