8520365 has 24 divisors (see below), whose sum is σ = 12065760. Its totient is φ = 5758368.

The previous prime is 8520359. The next prime is 8520389. The reversal of 8520365 is 5630258.

8520365 = 245² + 246² + ... + 342².

It is a de Polignac number, because none of the positive numbers 2^k-8520365 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20126 + ... + 20544.

It is an arithmetic number, because the mean of its divisors is an integer number (502740).

Almost surely, 2^8520365 is an apocalyptic number.

It is an amenable number.

8520365 is a deficient number, since it is larger than the sum of its proper divisors (3545395).

8520365 is a wasteful number, since it uses less digits than its factorization.

8520365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 8520365 is about 2918.9664266654. The cubic root of 8520365 is about 204.2456111942.

The spelling of 8520365 in words is "eight million, five hundred twenty thousand, three hundred sixty-five".