2748034021 has 2 divisors, whose sum is σ = 2748034022. Its totient is φ = 2748034020.

The previous prime is 2748034013. The next prime is 2748034103. The reversal of 2748034021 is 1204308472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1641141121 + 1106892900 = 40511^2 + 33270^2 .

It is a cyclic number.

It is not a de Polignac number, because 2748034021 - 2³ = 2748034013 is a prime.

It is a super-3 number, since 3×2748034021³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2748034321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374017010 + 1374017011.

It is an arithmetic number, because the mean of its divisors is an integer number (1374017011).

Almost surely, 2^2748034021 is an apocalyptic number.

It is an amenable number.

2748034021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748034021 is an equidigital number, since it uses as much as digits as its factorization.

2748034021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 2748034021 is about 52421.6941828476. The cubic root of 2748034021 is about 1400.6857220707.

The spelling of 2748034021 in words is "two billion, seven hundred forty-eight million, thirty-four thousand, twenty-one".