6813897 has 8 divisors (see below), whose sum is σ = 9122400. Its totient is φ = 4524000.

The previous prime is 6813887. The next prime is 6813899. The reversal of 6813897 is 7983186.

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

It is not a de Polignac number, because 6813897 - 2⁴ = 6813881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6813899) 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, 3772 + ... + 5277.

It is an arithmetic number, because the mean of its divisors is an integer number (1140300).

Almost surely, 2^6813897 is an apocalyptic number.

It is an amenable number.

6813897 is a deficient number, since it is larger than the sum of its proper divisors (2308503).

6813897 is a wasteful number, since it uses less digits than its factorization.

6813897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9303.

The product of its digits is 72576, while the sum is 42.

The square root of 6813897 is about 2610.3442301735. The cubic root of 6813897 is about 189.5826202713.

The spelling of 6813897 in words is "six million, eight hundred thirteen thousand, eight hundred ninety-seven".