2091946 has 8 divisors (see below), whose sum is σ = 3147264. Its totient is φ = 1042860.

The previous prime is 2091931. The next prime is 2091953. The reversal of 2091946 is 6491902.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600 + ... + 2131.

It is an arithmetic number, because the mean of its divisors is an integer number (393408).

2^2091946 is an apocalyptic number.

2091946 is a deficient number, since it is larger than the sum of its proper divisors (1055318).

2091946 is a wasteful number, since it uses less digits than its factorization.

2091946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2091946 is about 1446.3561110598. The cubic root of 2091946 is about 127.8939958950.

The spelling of 2091946 in words is "two million, ninety-one thousand, nine hundred forty-six".