4000547 has 4 divisors (see below), whose sum is σ = 4005000. Its totient is φ = 3996096.

The previous prime is 4000543. The next prime is 4000553. The reversal of 4000547 is 7450004.

4000547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4000547 - 2² = 4000543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4000541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353 + ... + 2850.

It is an arithmetic number, because the mean of its divisors is an integer number (1001250).

Almost surely, 2^4000547 is an apocalyptic number.

4000547 is a deficient number, since it is larger than the sum of its proper divisors (4453).

4000547 is a wasteful number, since it uses less digits than its factorization.

4000547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 4000547 is about 2000.1367453252. The cubic root of 4000547 is about 158.7473407701.

The spelling of 4000547 in words is "four million, five hundred forty-seven", and thus it is an aban number.