1789972 has 12 divisors (see below), whose sum is σ = 3179680. Its totient is φ = 881496.

The previous prime is 1789951. The next prime is 1789973. The reversal of 1789972 is 2799871.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1789973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3072 + ... + 3607.

2^1789972 is an apocalyptic number.

It is an amenable number.

1789972 is a deficient number, since it is larger than the sum of its proper divisors (1389708).

1789972 is a wasteful number, since it uses less digits than its factorization.

1789972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750 (or 6748 counting only the distinct ones).

The product of its digits is 63504, while the sum is 43.

The square root of 1789972 is about 1337.8983518937. The cubic root of 1789972 is about 121.4177216208.

It can be divided in two parts, 17899 and 72, that added together give a palindrome (17971).

The spelling of 1789972 in words is "one million, seven hundred eighty-nine thousand, nine hundred seventy-two".