1728974972 has 12 divisors (see below), whose sum is σ = 3075308376. Its totient is φ = 850315440.

The previous prime is 1728974971. The next prime is 1728974981. The reversal of 1728974972 is 2794798271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1728974971) 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, 3542738 + ... + 3543225.

It is an arithmetic number, because the mean of its divisors is an integer number (256275698).

Almost surely, 2^1728974972 is an apocalyptic number.

It is an amenable number.

1728974972 is a deficient number, since it is larger than the sum of its proper divisors (1346333404).

1728974972 is a wasteful number, since it uses less digits than its factorization.

1728974972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7086028 (or 7086026 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 56.

The square root of 1728974972 is about 41580.9448185103. The cubic root of 1728974972 is about 1200.2256455304.

The spelling of 1728974972 in words is "one billion, seven hundred twenty-eight million, nine hundred seventy-four thousand, nine hundred seventy-two".