8521337 has 4 divisors (see below), whose sum is σ = 9296016. Its totient is φ = 7746660.

The previous prime is 8521327. The next prime is 8521343. The reversal of 8521337 is 7331258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8521337 - 2⁴ = 8521321 is a prime.

It is a super-2 number, since 2×8521337² = 145226368535138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8521327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387323 + ... + 387344.

It is an arithmetic number, because the mean of its divisors is an integer number (2324004).

Almost surely, 2^8521337 is an apocalyptic number.

It is an amenable number.

8521337 is a deficient number, since it is larger than the sum of its proper divisors (774679).

8521337 is a wasteful number, since it uses less digits than its factorization.

8521337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774678.

The product of its digits is 5040, while the sum is 29.

The square root of 8521337 is about 2919.1329192073. The cubic root of 8521337 is about 204.2533776527.

The spelling of 8521337 in words is "eight million, five hundred twenty-one thousand, three hundred thirty-seven".