8409513 has 24 divisors (see below), whose sum is σ = 13413568. Its totient is φ = 4590432.

The previous prime is 8409497. The next prime is 8409523. The reversal of 8409513 is 3159048.

It is not a de Polignac number, because 8409513 - 2⁴ = 8409497 is a prime.

8409513 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8409523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10731 + ... + 11487.

Almost surely, 2^8409513 is an apocalyptic number.

It is an amenable number.

8409513 is a deficient number, since it is larger than the sum of its proper divisors (5004055).

8409513 is a wasteful number, since it uses less digits than its factorization.

8409513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 8409513 is about 2899.9160332672. The cubic root of 8409513 is about 203.3559803376.

The spelling of 8409513 in words is "eight million, four hundred nine thousand, five hundred thirteen".