1994877 has 6 divisors (see below), whose sum is σ = 2881502. Its totient is φ = 1329912.

The previous prime is 1994869. The next prime is 1994879. The reversal of 1994877 is 7784991.

It can be written as a sum of positive squares in only one way, i.e., 1279161 + 715716 = 1131^2 + 846^2 .

It is not a de Polignac number, because 1994877 - 2³ = 1994869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994879) 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, 110818 + ... + 110835.

2^1994877 is an apocalyptic number.

It is an amenable number.

1994877 is a deficient number, since it is larger than the sum of its proper divisors (886625).

1994877 is a wasteful number, since it uses less digits than its factorization.

1994877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221659 (or 221656 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 1994877 is about 1412.4011469834. The cubic root of 1994877 is about 125.8844367474.

The spelling of 1994877 in words is "one million, nine hundred ninety-four thousand, eight hundred seventy-seven".