8497813 has 4 divisors (see below), whose sum is σ = 8771968. Its totient is φ = 8223660.

The previous prime is 8497771. The next prime is 8497817. The reversal of 8497813 is 3187948.

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.

It is a cyclic number.

It is not a de Polignac number, because 8497813 - 2¹⁷ = 8366741 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 (8497817) 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, 137031 + ... + 137092.

It is an arithmetic number, because the mean of its divisors is an integer number (2192992).

Almost surely, 2^8497813 is an apocalyptic number.

It is an amenable number.

8497813 is a deficient number, since it is larger than the sum of its proper divisors (274155).

8497813 is a wasteful number, since it uses less digits than its factorization.

8497813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274154.

The product of its digits is 48384, while the sum is 40.

The square root of 8497813 is about 2915.1008558882. The cubic root of 8497813 is about 204.0652504970.

The spelling of 8497813 in words is "eight million, four hundred ninety-seven thousand, eight hundred thirteen".