1985954 has 8 divisors (see below), whose sum is σ = 2989980. Its totient is φ = 989296.

The previous prime is 1985939. The next prime is 1985987. The reversal of 1985954 is 4595891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1385329 + 600625 = 1177^2 + 775^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1109 + ... + 2280.

2^1985954 is an apocalyptic number.

1985954 is a deficient number, since it is larger than the sum of its proper divisors (1004026).

1985954 is a wasteful number, since it uses less digits than its factorization.

1985954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684.

The product of its digits is 64800, while the sum is 41.

The square root of 1985954 is about 1409.2388016231. The cubic root of 1985954 is about 125.6964642929.

The spelling of 1985954 in words is "one million, nine hundred eighty-five thousand, nine hundred fifty-four".