8642513 has 8 divisors (see below), whose sum is σ = 9658656. Its totient is φ = 7664800.

The previous prime is 8642509. The next prime is 8642519. The reversal of 8642513 is 3152468.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8642513 - 2² = 8642509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8642519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9131 + ... + 10032.

It is an arithmetic number, because the mean of its divisors is an integer number (1207332).

Almost surely, 2^8642513 is an apocalyptic number.

It is an amenable number.

8642513 is a deficient number, since it is larger than the sum of its proper divisors (1016143).

8642513 is a wasteful number, since it uses less digits than its factorization.

8642513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19215.

The product of its digits is 5760, while the sum is 29.

The square root of 8642513 is about 2939.8151302420. The cubic root of 8642513 is about 205.2170059762.

The spelling of 8642513 in words is "eight million, six hundred forty-two thousand, five hundred thirteen".