4047487 has 2 divisors, whose sum is σ = 4047488. Its totient is φ = 4047486.

The previous prime is 4047473. The next prime is 4047509. The reversal of 4047487 is 7847404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4047487 - 2⁷ = 4047359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4047587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2023743 + 2023744.

It is an arithmetic number, because the mean of its divisors is an integer number (2023744).

Almost surely, 2^4047487 is an apocalyptic number.

4047487 is a deficient number, since it is larger than the sum of its proper divisors (1).

4047487 is an equidigital number, since it uses as much as digits as its factorization.

4047487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 4047487 is about 2011.8367229972. The cubic root of 4047487 is about 159.3658099020.

The spelling of 4047487 in words is "four million, forty-seven thousand, four hundred eighty-seven".