8436013 has 4 divisors (see below), whose sum is σ = 8726940. Its totient is φ = 8145088.

The previous prime is 8435971. The next prime is 8436017. The reversal of 8436013 is 3106348.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3674889 + 4761124 = 1917^2 + 2182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8436013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8436017) 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, 145420 + ... + 145477.

It is an arithmetic number, because the mean of its divisors is an integer number (2181735).

Almost surely, 2^8436013 is an apocalyptic number.

It is an amenable number.

8436013 is a deficient number, since it is larger than the sum of its proper divisors (290927).

8436013 is a wasteful number, since it uses less digits than its factorization.

8436013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290926.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 8436013 is about 2904.4815372111. The cubic root of 8436013 is about 203.5693610190.

The spelling of 8436013 in words is "eight million, four hundred thirty-six thousand, thirteen".