8521371 has 6 divisors (see below), whose sum is σ = 12308660. Its totient is φ = 5680908.

The previous prime is 8521343. The next prime is 8521391. The reversal of 8521371 is 1731258.

It is not a de Polignac number, because 8521371 - 2⁷ = 8521243 is a prime.

It is a super-2 number, since 2×8521371² = 145227527439282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8521321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 473401 + ... + 473418.

Almost surely, 2^8521371 is an apocalyptic number.

8521371 is a deficient number, since it is larger than the sum of its proper divisors (3787289).

8521371 is a wasteful number, since it uses less digits than its factorization.

8521371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946825 (or 946822 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 8521371 is about 2919.1387428487. The cubic root of 8521371 is about 204.2536493083.

The spelling of 8521371 in words is "eight million, five hundred twenty-one thousand, three hundred seventy-one".