1893972 has 12 divisors (see below), whose sum is σ = 4419296. Its totient is φ = 631320.

The previous prime is 1893971. The next prime is 1893973. The reversal of 1893972 is 2793981.

It is an interprime number because it is at equal distance from previous prime (1893971) and next prime (1893973).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1893972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1893971) by changing a digit.

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, 78904 + ... + 78927.

2^1893972 is an apocalyptic number.

1893972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1893972 is an abundant number, since it is smaller than the sum of its proper divisors (2525324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1893972 is a wasteful number, since it uses less digits than its factorization.

1893972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157838 (or 157836 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 1893972 is about 1376.2165527271. The cubic root of 1893972 is about 123.7251107990.

Subtracting 1893972 from its reverse (2793981), we obtain a palindrome (900009).

The spelling of 1893972 in words is "one million, eight hundred ninety-three thousand, nine hundred seventy-two".