1946993 has 6 divisors (see below), whose sum is σ = 2068566. Its totient is φ = 1832192.

The previous prime is 1946981. The next prime is 1946999. The reversal of 1946993 is 3996491.

It can be written as a sum of positive squares in 3 ways, for example, as 795664 + 1151329 = 892^2 + 1073^2 .

It is not a de Polignac number, because 1946993 - 2¹⁰ = 1945969 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1946993.

It is not an unprimeable number, because it can be changed into a prime (1946999) 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 5 ways as a sum of consecutive naturals, for example, 3080 + ... + 3657.

It is an arithmetic number, because the mean of its divisors is an integer number (344761).

2^1946993 is an apocalyptic number.

It is an amenable number.

1946993 is a deficient number, since it is larger than the sum of its proper divisors (121573).

1946993 is an equidigital number, since it uses as much as digits as its factorization.

1946993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6771 (or 6754 counting only the distinct ones).

The product of its digits is 52488, while the sum is 41.

The square root of 1946993 is about 1395.3469102700. The cubic root of 1946993 is about 124.8690468581.

The spelling of 1946993 in words is "one million, nine hundred forty-six thousand, nine hundred ninety-three".