3974409 has 12 divisors (see below), whose sum is σ = 5786352. Its totient is φ = 2628600.

The previous prime is 3974393. The next prime is 3974419. The reversal of 3974409 is 9044793.

It is not a de Polignac number, because 3974409 - 2⁴ = 3974393 is a prime.

3974409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3974419) 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, 507 + ... + 2864.

It is an arithmetic number, because the mean of its divisors is an integer number (482196).

Almost surely, 2^3974409 is an apocalyptic number.

It is an amenable number.

3974409 is a deficient number, since it is larger than the sum of its proper divisors (1811943).

3974409 is a wasteful number, since it uses less digits than its factorization.

3974409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508 (or 3505 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 3974409 is about 1993.5919843338. The cubic root of 3974409 is about 158.4008541812.

The spelling of 3974409 in words is "three million, nine hundred seventy-four thousand, four hundred nine".