8870813 has 12 divisors (see below), whose sum is σ = 10372860. Its totient is φ = 7564032.

The previous prime is 8870783. The next prime is 8870819. The reversal of 8870813 is 3180788.

8870813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1570009 + 7300804 = 1253^2 + 2702^2 .

It is not a de Polignac number, because 8870813 - 2⁶ = 8870749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8870819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12845 + ... + 13517.

It is an arithmetic number, because the mean of its divisors is an integer number (864405).

Almost surely, 2^8870813 is an apocalyptic number.

It is an amenable number.

8870813 is a deficient number, since it is larger than the sum of its proper divisors (1502047).

8870813 is a wasteful number, since it uses less digits than its factorization.

8870813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 949 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 8870813 is about 2978.3910085816. The cubic root of 8870813 is about 207.0083234691.

The spelling of 8870813 in words is "eight million, eight hundred seventy thousand, eight hundred thirteen".