4004001047 has 2 divisors, whose sum is σ = 4004001048. Its totient is φ = 4004001046.

The previous prime is 4004000999. The next prime is 4004001061. The reversal of 4004001047 is 7401004004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4004001047 - 2¹⁰ = 4004000023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4004001077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2002000523 + 2002000524.

It is an arithmetic number, because the mean of its divisors is an integer number (2002000524).

Almost surely, 2^4004001047 is an apocalyptic number.

4004001047 is a deficient number, since it is larger than the sum of its proper divisors (1).

4004001047 is an equidigital number, since it uses as much as digits as its factorization.

4004001047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 4004001047 is about 63277.1763513512. The cubic root of 4004001047 is about 1587.9301477807.

The spelling of 4004001047 in words is "four billion, four million, one thousand, forty-seven".