3974407 has 4 divisors (see below), whose sum is σ = 3983056. Its totient is φ = 3965760.

The previous prime is 3974393. The next prime is 3974419. The reversal of 3974407 is 7044793.

3974407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3974407 - 2⁷ = 3974279 is a prime.

It is a super-2 number, since 2×3974407² = 31591822003298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3974437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3594 + ... + 4567.

It is an arithmetic number, because the mean of its divisors is an integer number (995764).

Almost surely, 2^3974407 is an apocalyptic number.

3974407 is a deficient number, since it is larger than the sum of its proper divisors (8649).

3974407 is an equidigital number, since it uses as much as digits as its factorization.

3974407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8648.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 3974407 is about 1993.5914827266. The cubic root of 3974407 is about 158.4008276111.

The spelling of 3974407 in words is "three million, nine hundred seventy-four thousand, four hundred seven".