8745487 has 4 divisors (see below), whose sum is σ = 8771776. Its totient is φ = 8719200.

The previous prime is 8745449. The next prime is 8745493. The reversal of 8745487 is 7845478.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8745487 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8745437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12639 + ... + 13312.

It is an arithmetic number, because the mean of its divisors is an integer number (2192944).

Almost surely, 2^8745487 is an apocalyptic number.

8745487 is a deficient number, since it is larger than the sum of its proper divisors (26289).

8745487 is a wasteful number, since it uses less digits than its factorization.

8745487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26288.

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

The square root of 8745487 is about 2957.2769569318. The cubic root of 8745487 is about 206.0288315444.

Subtracting from 8745487 its reverse (7845478), we obtain a palindrome (900009).

The spelling of 8745487 in words is "eight million, seven hundred forty-five thousand, four hundred eighty-seven".