3744921 has 8 divisors (see below), whose sum is σ = 5025664. Its totient is φ = 2480400.

The previous prime is 3744869. The next prime is 3744941. The reversal of 3744921 is 1294473.

It is a happy number.

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

It is not a de Polignac number, because 3744921 - 2⁹ = 3744409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3744941) 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, 3505 + ... + 4446.

It is an arithmetic number, because the mean of its divisors is an integer number (628208).

Almost surely, 2^3744921 is an apocalyptic number.

It is an amenable number.

3744921 is a deficient number, since it is larger than the sum of its proper divisors (1280743).

3744921 is a wasteful number, since it uses less digits than its factorization.

3744921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8111.

The product of its digits is 6048, while the sum is 30.

The square root of 3744921 is about 1935.1798366043. The cubic root of 3744921 is about 155.2914530126.

The spelling of 3744921 in words is "three million, seven hundred forty-four thousand, nine hundred twenty-one".