16909995 has 8 divisors (see below), whose sum is σ = 27056016. Its totient is φ = 9018656.

The previous prime is 16909979. The next prime is 16910011. The reversal of 16909995 is 59990961.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16909979) and next prime (16910011).

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 16909995 - 2⁴ = 16909979 is a prime.

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, 563652 + ... + 563681.

It is an arithmetic number, because the mean of its divisors is an integer number (3382002).

Almost surely, 2^16909995 is an apocalyptic number.

16909995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16909995 is a deficient number, since it is larger than the sum of its proper divisors (10146021).

16909995 is a wasteful number, since it uses less digits than its factorization.

16909995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127341.

The product of its (nonzero) digits is 196830, while the sum is 48.

The square root of 16909995 is about 4112.1764310399. The cubic root of 16909995 is about 256.6735750844.

The spelling of 16909995 in words is "sixteen million, nine hundred nine thousand, nine hundred ninety-five".