3924147 has 4 divisors (see below), whose sum is σ = 5232200. Its totient is φ = 2616096.

The previous prime is 3924139. The next prime is 3924163. The reversal of 3924147 is 7414293.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3924147 - 2³ = 3924139 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3924187) 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 3 ways as a sum of consecutive naturals, for example, 654022 + ... + 654027.

It is an arithmetic number, because the mean of its divisors is an integer number (1308050).

Almost surely, 2^3924147 is an apocalyptic number.

3924147 is a deficient number, since it is larger than the sum of its proper divisors (1308053).

3924147 is a wasteful number, since it uses less digits than its factorization.

3924147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308052.

The product of its digits is 6048, while the sum is 30.

The square root of 3924147 is about 1980.9459861389. The cubic root of 3924147 is about 157.7302854517.

The spelling of 3924147 in words is "three million, nine hundred twenty-four thousand, one hundred forty-seven".