8687479 has 2 divisors, whose sum is σ = 8687480. Its totient is φ = 8687478.

The previous prime is 8687477. The next prime is 8687513. The reversal of 8687479 is 9747868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8687479 - 2¹ = 8687477 is a prime.

Together with 8687477, it forms a pair of twin primes.

8687479 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8687477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4343739 + 4343740.

It is an arithmetic number, because the mean of its divisors is an integer number (4343740).

Almost surely, 2^8687479 is an apocalyptic number.

8687479 is a deficient number, since it is larger than the sum of its proper divisors (1).

8687479 is an equidigital number, since it uses as much as digits as its factorization.

8687479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 49.

The square root of 8687479 is about 2947.4529682422. The cubic root of 8687479 is about 205.5722973243.

The spelling of 8687479 in words is "eight million, six hundred eighty-seven thousand, four hundred seventy-nine".