6870917 has 4 divisors (see below), whose sum is σ = 6973536. Its totient is φ = 6768300.

The previous prime is 6870911. The next prime is 6870931. The reversal of 6870917 is 7190786.

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: 7190786 = 2 ⋅3595393.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6870917 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 (6870911) 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, 51209 + ... + 51342.

It is an arithmetic number, because the mean of its divisors is an integer number (1743384).

Almost surely, 2^6870917 is an apocalyptic number.

6870917 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

6870917 is a deficient number, since it is larger than the sum of its proper divisors (102619).

6870917 is a wasteful number, since it uses less digits than its factorization.

6870917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102618.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 6870917 is about 2621.2434072402. The cubic root of 6870917 is about 190.1099732689.

The spelling of 6870917 in words is "six million, eight hundred seventy thousand, nine hundred seventeen".