3974347 has 4 divisors (see below), whose sum is σ = 4280080. Its totient is φ = 3668616.

The previous prime is 3974309. The next prime is 3974351. The reversal of 3974347 is 7434793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7434793 = 89 ⋅83537.

It is a cyclic number.

It is not a de Polignac number, because 3974347 - 2⁷ = 3974219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3974357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152847 + ... + 152872.

It is an arithmetic number, because the mean of its divisors is an integer number (1070020).

Almost surely, 2^3974347 is an apocalyptic number.

3974347 is a deficient number, since it is larger than the sum of its proper divisors (305733).

3974347 is a wasteful number, since it uses less digits than its factorization.

3974347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305732.

The product of its digits is 63504, while the sum is 37.

The square root of 3974347 is about 1993.5764344514. The cubic root of 3974347 is about 158.4000305028.

The spelling of 3974347 in words is "three million, nine hundred seventy-four thousand, three hundred forty-seven".