6699955 has 8 divisors (see below), whose sum is σ = 8512992. Its totient is φ = 5044608.

The previous prime is 6699949. The next prime is 6699961. The reversal of 6699955 is 5599966.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6699949) and next prime (6699961).

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 6699955 - 2³ = 6699947 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6699899 and 6699908.

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, 39327 + ... + 39496.

It is an arithmetic number, because the mean of its divisors is an integer number (1064124).

Almost surely, 2^6699955 is an apocalyptic number.

6699955 is a deficient number, since it is larger than the sum of its proper divisors (1813037).

6699955 is a wasteful number, since it uses less digits than its factorization.

6699955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78845.

The product of its digits is 656100, while the sum is 49.

The square root of 6699955 is about 2588.4271285860. The cubic root of 6699955 is about 188.5199410406.

The spelling of 6699955 in words is "six million, six hundred ninety-nine thousand, nine hundred fifty-five".