2729383021 has 4 divisors (see below), whose sum is σ = 2848051872. Its totient is φ = 2610714172.

The previous prime is 2729382991. The next prime is 2729383049. The reversal of 2729383021 is 1203839272.

2729383021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 2729383021 - 2²³ = 2720994413 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 (2729383051) 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, 59334391 + ... + 59334436.

It is an arithmetic number, because the mean of its divisors is an integer number (712012968).

Almost surely, 2^2729383021 is an apocalyptic number.

It is an amenable number.

2729383021 is a deficient number, since it is larger than the sum of its proper divisors (118668851).

2729383021 is a wasteful number, since it uses less digits than its factorization.

2729383021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118668850.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 2729383021 is about 52243.4974039832. The cubic root of 2729383021 is about 1397.5096921061.

The spelling of 2729383021 in words is "two billion, seven hundred twenty-nine million, three hundred eighty-three thousand, twenty-one".