4047047 has 4 divisors (see below), whose sum is σ = 4102560. Its totient is φ = 3991536.

The previous prime is 4047041. The next prime is 4047049. The reversal of 4047047 is 7407404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4047047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4047041) 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, 27647 + ... + 27792.

It is an arithmetic number, because the mean of its divisors is an integer number (1025640).

Almost surely, 2^4047047 is an apocalyptic number.

4047047 is a deficient number, since it is larger than the sum of its proper divisors (55513).

4047047 is an equidigital number, since it uses as much as digits as its factorization.

4047047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55512.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 4047047 is about 2011.7273672146. The cubic root of 4047047 is about 159.3600348373.

The spelling of 4047047 in words is "four million, forty-seven thousand, forty-seven".