8521479 has 12 divisors (see below), whose sum is σ = 12337416. Its totient is φ = 5667792.

The previous prime is 8521453. The next prime is 8521501. The reversal of 8521479 is 9741258.

It is not a de Polignac number, because 8521479 - 2⁸ = 8521223 is a prime.

8521479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8541479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4477 + ... + 6089.

It is an arithmetic number, because the mean of its divisors is an integer number (1028118).

Almost surely, 2^8521479 is an apocalyptic number.

8521479 is a deficient number, since it is larger than the sum of its proper divisors (3815937).

8521479 is a wasteful number, since it uses less digits than its factorization.

8521479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206 (or 2203 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 8521479 is about 2919.1572413969. The cubic root of 8521479 is about 204.2545122094.

The spelling of 8521479 in words is "eight million, five hundred twenty-one thousand, four hundred seventy-nine".