1972727 has 4 divisors (see below), whose sum is σ = 1975656. Its totient is φ = 1969800.

The previous prime is 1972721. The next prime is 1972739. The reversal of 1972727 is 7272791.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1972727 - 2⁸ = 1972471 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 (1972721) 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, 113 + ... + 1989.

It is an arithmetic number, because the mean of its divisors is an integer number (493914).

2^1972727 is an apocalyptic number.

1972727 is a deficient number, since it is larger than the sum of its proper divisors (2929).

1972727 is a wasteful number, since it uses less digits than its factorization.

1972727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928.

The product of its digits is 12348, while the sum is 35.

The square root of 1972727 is about 1404.5380023339. The cubic root of 1972727 is about 125.4167847791.

The spelling of 1972727 in words is "one million, nine hundred seventy-two thousand, seven hundred twenty-seven".