3959547 has 4 divisors (see below), whose sum is σ = 5279400. Its totient is φ = 2639696.

The previous prime is 3959539. The next prime is 3959551. The reversal of 3959547 is 7459593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7459593 = 3 ⋅2486531.

It is a cyclic number.

It is not a de Polignac number, because 3959547 - 2³ = 3959539 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 3959499 and 3959508.

It is not an unprimeable number, because it can be changed into a prime (3959507) 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, 659922 + ... + 659927.

It is an arithmetic number, because the mean of its divisors is an integer number (1319850).

Almost surely, 2^3959547 is an apocalyptic number.

3959547 is a deficient number, since it is larger than the sum of its proper divisors (1319853).

3959547 is a wasteful number, since it uses less digits than its factorization.

3959547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319852.

The product of its digits is 170100, while the sum is 42.

The square root of 3959547 is about 1989.8610504254. The cubic root of 3959547 is about 158.2031649148.

The spelling of 3959547 in words is "three million, nine hundred fifty-nine thousand, five hundred forty-seven".