4392947 has 4 divisors (see below), whose sum is σ = 4730880. Its totient is φ = 4055016.

The previous prime is 4392937. The next prime is 4393001. The reversal of 4392947 is 7492934.

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

It is a cyclic number.

It is not a de Polignac number, because 4392947 - 2⁸ = 4392691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4392947.

It is not an unprimeable number, because it can be changed into a prime (4392937) 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, 168947 + ... + 168972.

It is an arithmetic number, because the mean of its divisors is an integer number (1182720).

Almost surely, 2^4392947 is an apocalyptic number.

4392947 is a deficient number, since it is larger than the sum of its proper divisors (337933).

4392947 is a wasteful number, since it uses less digits than its factorization.

4392947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337932.

The product of its digits is 54432, while the sum is 38.

The square root of 4392947 is about 2095.9358291703. The cubic root of 4392947 is about 163.7766516455.

The spelling of 4392947 in words is "four million, three hundred ninety-two thousand, nine hundred forty-seven".