3944347 has 16 divisors (see below), whose sum is σ = 4561920. Its totient is φ = 3376800.

The previous prime is 3944329. The next prime is 3944351. The reversal of 3944347 is 7434493.

It is a cyclic number.

It is not a de Polignac number, because 3944347 - 2⁷ = 3944219 is a prime.

3944347 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3944387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14529 + ... + 14797.

It is an arithmetic number, because the mean of its divisors is an integer number (285120).

Almost surely, 2^3944347 is an apocalyptic number.

3944347 is a deficient number, since it is larger than the sum of its proper divisors (617573).

3944347 is a wasteful number, since it uses less digits than its factorization.

3944347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354.

The product of its digits is 36288, while the sum is 34.

The square root of 3944347 is about 1986.0380157489. The cubic root of 3944347 is about 158.0004673383. Note that the first 3 decimals are identical.

The spelling of 3944347 in words is "three million, nine hundred forty-four thousand, three hundred forty-seven".