6909873 has 8 divisors (see below), whose sum is σ = 9236736. Its totient is φ = 4594800.

The previous prime is 6909841. The next prime is 6909887. The reversal of 6909873 is 3789096.

It is a happy number.

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

It is not a de Polignac number, because 6909873 - 2⁵ = 6909841 is a prime.

It is a super-2 number, since 2×6909873² = 95492689752258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6909823) 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, 1473 + ... + 3998.

It is an arithmetic number, because the mean of its divisors is an integer number (1154592).

Almost surely, 2^6909873 is an apocalyptic number.

It is an amenable number.

6909873 is a deficient number, since it is larger than the sum of its proper divisors (2326863).

6909873 is a wasteful number, since it uses less digits than its factorization.

6909873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 6909873 is about 2628.6637289695. The cubic root of 6909873 is about 190.4685848679.

The spelling of 6909873 in words is "six million, nine hundred nine thousand, eight hundred seventy-three".