16047487 has 2 divisors, whose sum is σ = 16047488. Its totient is φ = 16047486.

The previous prime is 16047481. The next prime is 16047497. The reversal of 16047487 is 78474061.

It is a weak prime.

It is an emirp because it is prime and its reverse (78474061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16047487 - 2¹⁹ = 15523199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16047481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8023743 + 8023744.

It is an arithmetic number, because the mean of its divisors is an integer number (8023744).

Almost surely, 2^16047487 is an apocalyptic number.

16047487 is a deficient number, since it is larger than the sum of its proper divisors (1).

16047487 is an equidigital number, since it uses as much as digits as its factorization.

16047487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 16047487 is about 4005.9314771973. The cubic root of 16047487 is about 252.2332548867.

The spelling of 16047487 in words is "sixteen million, forty-seven thousand, four hundred eighty-seven".