6729487 has 2 divisors, whose sum is σ = 6729488. Its totient is φ = 6729486.

The previous prime is 6729473. The next prime is 6729493. The reversal of 6729487 is 7849276.

6729487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6729487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6729427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3364743 + 3364744.

It is an arithmetic number, because the mean of its divisors is an integer number (3364744).

Almost surely, 2^6729487 is an apocalyptic number.

6729487 is a deficient number, since it is larger than the sum of its proper divisors (1).

6729487 is an equidigital number, since it uses as much as digits as its factorization.

6729487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 6729487 is about 2594.1254788464. The cubic root of 6729487 is about 188.7965205567.

The spelling of 6729487 in words is "six million, seven hundred twenty-nine thousand, four hundred eighty-seven".