8072813 has 8 divisors (see below), whose sum is σ = 9244032. Its totient is φ = 6906096.

The previous prime is 8072809. The next prime is 8072821. The reversal of 8072813 is 3182708.

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

It is a cyclic number.

It is not a de Polignac number, because 8072813 - 2² = 8072809 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8072843) 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, 4856 + ... + 6302.

It is an arithmetic number, because the mean of its divisors is an integer number (1155504).

Almost surely, 2^8072813 is an apocalyptic number.

It is an amenable number.

8072813 is a deficient number, since it is larger than the sum of its proper divisors (1171219).

8072813 is a wasteful number, since it uses less digits than its factorization.

8072813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 8072813 is about 2841.2696105790. The cubic root of 8072813 is about 200.6049433727.

The spelling of 8072813 in words is "eight million, seventy-two thousand, eight hundred thirteen".