8957813 has 4 divisors (see below), whose sum is σ = 8968800. Its totient is φ = 8946828.

The previous prime is 8957771. The next prime is 8957821. The reversal of 8957813 is 3187598.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3187598 = 2 ⋅1593799.

It is a cyclic number.

It is not a de Polignac number, because 8957813 - 2⁶ = 8957749 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 (8957843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4163 + ... + 5936.

It is an arithmetic number, because the mean of its divisors is an integer number (2242200).

Almost surely, 2^8957813 is an apocalyptic number.

It is an amenable number.

8957813 is a deficient number, since it is larger than the sum of its proper divisors (10987).

8957813 is a wasteful number, since it uses less digits than its factorization.

8957813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10986.

The product of its digits is 60480, while the sum is 41.

The square root of 8957813 is about 2992.9605744146. The cubic root of 8957813 is about 207.6828639123.

The spelling of 8957813 in words is "eight million, nine hundred fifty-seven thousand, eight hundred thirteen".