3724909 has 4 divisors (see below), whose sum is σ = 3737916. Its totient is φ = 3711904.

The previous prime is 3724907. The next prime is 3724913. The reversal of 3724909 is 9094273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9094273 = 2273 ⋅4001.

It can be written as a sum of positive squares in 2 ways, for example, as 3526884 + 198025 = 1878^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 3724909 - 2¹ = 3724907 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 (3724907) 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, 6064 + ... + 6649.

It is an arithmetic number, because the mean of its divisors is an integer number (934479).

Almost surely, 2^3724909 is an apocalyptic number.

It is an amenable number.

3724909 is a deficient number, since it is larger than the sum of its proper divisors (13007).

3724909 is a wasteful number, since it uses less digits than its factorization.

3724909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13006.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 3724909 is about 1930.0023316048. The cubic root of 3724909 is about 155.0143448396.

The spelling of 3724909 in words is "three million, seven hundred twenty-four thousand, nine hundred nine".