3947342 has 24 divisors (see below), whose sum is σ = 7042464. Its totient is φ = 1653792.

The previous prime is 3947327. The next prime is 3947351. The reversal of 3947342 is 2437493.

It is a junction number, because it is equal to n+sod(n) for n = 3947299 and 3947308.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4178 + ... + 5034.

It is an arithmetic number, because the mean of its divisors is an integer number (293436).

Almost surely, 2^3947342 is an apocalyptic number.

3947342 is a deficient number, since it is larger than the sum of its proper divisors (3095122).

3947342 is a wasteful number, since it uses less digits than its factorization.

3947342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 913 counting only the distinct ones).

The product of its digits is 18144, while the sum is 32.

The square root of 3947342 is about 1986.7918864340. The cubic root of 3947342 is about 158.0404479044.

The spelling of 3947342 in words is "three million, nine hundred forty-seven thousand, three hundred forty-two".