1662946 has 8 divisors (see below), whose sum is σ = 2602944. Its totient is φ = 795300.

The previous prime is 1662943. The next prime is 1662953. The reversal of 1662946 is 6492661.

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

It is not an unprimeable number, because it can be changed into a prime (1662943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18030 + ... + 18121.

It is an arithmetic number, because the mean of its divisors is an integer number (325368).

2^1662946 is an apocalyptic number.

1662946 is a deficient number, since it is larger than the sum of its proper divisors (939998).

1662946 is a wasteful number, since it uses less digits than its factorization.

1662946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36176.

The product of its digits is 15552, while the sum is 34.

The square root of 1662946 is about 1289.5526356066. The cubic root of 1662946 is about 118.4748176533.

The spelling of 1662946 in words is "one million, six hundred sixty-two thousand, nine hundred forty-six".