6909955 has 8 divisors (see below), whose sum is σ = 8929872. Its totient is φ = 5102688.

The previous prime is 6909949. The next prime is 6909967. The reversal of 6909955 is 5599096.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6909955 - 2⁵ = 6909923 is a prime.

It is an Ulam number.

It is a Duffinian number.

6909955 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53089 + ... + 53218.

It is an arithmetic number, because the mean of its divisors is an integer number (1116234).

Almost surely, 2^6909955 is an apocalyptic number.

6909955 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6909955 is a deficient number, since it is larger than the sum of its proper divisors (2019917).

6909955 is a wasteful number, since it uses less digits than its factorization.

6909955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106325.

The product of its (nonzero) digits is 109350, while the sum is 43.

The square root of 6909955 is about 2628.6793262017. The cubic root of 6909955 is about 190.4693383001.

The spelling of 6909955 in words is "six million, nine hundred nine thousand, nine hundred fifty-five".