8001013 has 4 divisors (see below), whose sum is σ = 8276940. Its totient is φ = 7725088.

The previous prime is 8000989. The next prime is 8001029. The reversal of 8001013 is 3101008.

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 4695889 + 3305124 = 2167^2 + 1818^2 .

It is a cyclic number.

It is not a de Polignac number, because 8001013 - 2⁵ = 8000981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8000984 and 8001002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8002013) 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, 137920 + ... + 137977.

It is an arithmetic number, because the mean of its divisors is an integer number (2069235).

Almost surely, 2^8001013 is an apocalyptic number.

It is an amenable number.

8001013 is a deficient number, since it is larger than the sum of its proper divisors (275927).

8001013 is a wasteful number, since it uses less digits than its factorization.

8001013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275926.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 8001013 is about 2828.6061938700. The cubic root of 8001013 is about 200.0084413104.

The spelling of 8001013 in words is "eight million, one thousand, thirteen".