1993892 has 12 divisors (see below), whose sum is σ = 3499776. Its totient is φ = 993960.

The previous prime is 1993877. The next prime is 1993921. The reversal of 1993892 is 2983991.

It is an Ulam number.

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, 1517 + ... + 2507.

It is an arithmetic number, because the mean of its divisors is an integer number (291648).

2^1993892 is an apocalyptic number.

It is an amenable number.

1993892 is a deficient number, since it is larger than the sum of its proper divisors (1505884).

1993892 is a wasteful number, since it uses less digits than its factorization.

1993892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498 (or 1496 counting only the distinct ones).

The product of its digits is 34992, while the sum is 41.

The square root of 1993892 is about 1412.0524069595. The cubic root of 1993892 is about 125.8637142360.

Subtracting 1993892 from its reverse (2983991), we obtain a palindrome (990099).

The spelling of 1993892 in words is "one million, nine hundred ninety-three thousand, eight hundred ninety-two".