2072720003 has 4 divisors (see below), whose sum is σ = 2162838288. Its totient is φ = 1982601720.

The previous prime is 2072719963. The next prime is 2072720011. The reversal of 2072720003 is 3000272702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2072720003 - 2¹² = 2072715907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 90118261 = 2072720003 / (2 + 0 + 7 + 2 + 7 + 2 + 0 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2072720303) 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, 45059108 + ... + 45059153.

It is an arithmetic number, because the mean of its divisors is an integer number (540709572).

Almost surely, 2^2072720003 is an apocalyptic number.

2072720003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2072720003 is a deficient number, since it is larger than the sum of its proper divisors (90118285).

2072720003 is an equidigital number, since it uses as much as digits as its factorization.

2072720003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90118284.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 2072720003 is about 45527.1347989306. The cubic root of 2072720003 is about 1275.0098685383.

Adding to 2072720003 its reverse (3000272702), we get a palindrome (5072992705).

The spelling of 2072720003 in words is "two billion, seventy-two million, seven hundred twenty thousand, three".