2728973 has 8 divisors (see below), whose sum is σ = 3067008. Its totient is φ = 2409264.

The previous prime is 2728967. The next prime is 2728981. The reversal of 2728973 is 3798272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2728973 - 2¹² = 2724877 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4265 + ... + 4862.

It is an arithmetic number, because the mean of its divisors is an integer number (383376).

2^2728973 is an apocalyptic number.

2728973 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2728973 is a deficient number, since it is larger than the sum of its proper divisors (338035).

2728973 is a wasteful number, since it uses less digits than its factorization.

2728973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9163.

The product of its digits is 42336, while the sum is 38.

The square root of 2728973 is about 1651.9603506138. The cubic root of 2728973 is about 139.7439708400.

The spelling of 2728973 in words is "two million, seven hundred twenty-eight thousand, nine hundred seventy-three".