4000047 has 8 divisors (see below), whose sum is σ = 5342640. Its totient is φ = 2662080.

The previous prime is 4000043. The next prime is 4000063. The reversal of 4000047 is 7400004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4000047 - 2² = 4000043 is a prime.

4000047 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2797 + ... + 3977.

It is an arithmetic number, because the mean of its divisors is an integer number (667830).

Almost surely, 2^4000047 is an apocalyptic number.

4000047 is a deficient number, since it is larger than the sum of its proper divisors (1342593).

4000047 is a wasteful number, since it uses less digits than its factorization.

4000047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 4000047 is about 2000.0117499655. The cubic root of 4000047 is about 158.7407269265.

The spelling of 4000047 in words is "four million, forty-seven", and thus it is an aban number.