8457487 has 2 divisors, whose sum is σ = 8457488. Its totient is φ = 8457486.

The previous prime is 8457481. The next prime is 8457499. The reversal of 8457487 is 7847548.

8457487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8457487 - 2³ = 8457479 is a prime.

8457487 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8457481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4228743 + 4228744.

It is an arithmetic number, because the mean of its divisors is an integer number (4228744).

Almost surely, 2^8457487 is an apocalyptic number.

8457487 is a deficient number, since it is larger than the sum of its proper divisors (1).

8457487 is an equidigital number, since it uses as much as digits as its factorization.

8457487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 250880, while the sum is 43.

The square root of 8457487 is about 2908.1758887660. The cubic root of 8457487 is about 203.7419443037.

The spelling of 8457487 in words is "eight million, four hundred fifty-seven thousand, four hundred eighty-seven".