3953439 has 12 divisors (see below), whose sum is σ = 6526416. Its totient is φ = 2259072.

The previous prime is 3953437. The next prime is 3953473. The reversal of 3953439 is 9343593.

It is a happy number.

It is not a de Polignac number, because 3953439 - 2¹ = 3953437 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3953437) by changing a digit.

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, 31314 + ... + 31439.

It is an arithmetic number, because the mean of its divisors is an integer number (543868).

Almost surely, 2^3953439 is an apocalyptic number.

3953439 is a deficient number, since it is larger than the sum of its proper divisors (2572977).

3953439 is a wasteful number, since it uses less digits than its factorization.

3953439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62766 (or 62763 counting only the distinct ones).

The product of its digits is 43740, while the sum is 36.

The square root of 3953439 is about 1988.3256775488. The cubic root of 3953439 is about 158.1217749450.

The spelling of 3953439 in words is "three million, nine hundred fifty-three thousand, four hundred thirty-nine".