2712009621 has 4 divisors (see below), whose sum is σ = 3616012832. Its totient is φ = 1808006412.

The previous prime is 2712009589. The next prime is 2712009623. The reversal of 2712009621 is 1269002172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2712009621 - 2⁵ = 2712009589 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 (2712009623) 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, 452001601 + ... + 452001606.

It is an arithmetic number, because the mean of its divisors is an integer number (904003208).

Almost surely, 2^2712009621 is an apocalyptic number.

It is an amenable number.

2712009621 is a deficient number, since it is larger than the sum of its proper divisors (904003211).

2712009621 is an equidigital number, since it uses as much as digits as its factorization.

2712009621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904003210.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 2712009621 is about 52076.9586381540. The cubic root of 2712009621 is about 1394.5381788564.

The spelling of 2712009621 in words is "two billion, seven hundred twelve million, nine thousand, six hundred twenty-one".