1916906 has 8 divisors (see below), whose sum is σ = 2881920. Its totient is φ = 956268.

The previous prime is 1916881. The next prime is 1916909. The reversal of 1916906 is 6096191.

It is a happy number.

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

It is a super-2 number, since 2×1916906² = 7349057225672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1916909) 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, 425 + ... + 2003.

It is an arithmetic number, because the mean of its divisors is an integer number (360240).

2^1916906 is an apocalyptic number.

1916906 is a deficient number, since it is larger than the sum of its proper divisors (965014).

1916906 is a wasteful number, since it uses less digits than its factorization.

1916906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1916906 is about 1384.5237448307. The cubic root of 1916906 is about 124.2225020016. Note that the first 3 decimals are identical.

The spelling of 1916906 in words is "one million, nine hundred sixteen thousand, nine hundred six".