2741621 has 2 divisors, whose sum is σ = 2741622. Its totient is φ = 2741620.

The previous prime is 2741617. The next prime is 2741633. The reversal of 2741621 is 1261472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1500625 + 1240996 = 1225^2 + 1114^2 .

It is a cyclic number.

It is not a de Polignac number, because 2741621 - 2² = 2741617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2741021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1370810 + 1370811.

It is an arithmetic number, because the mean of its divisors is an integer number (1370811).

2^2741621 is an apocalyptic number.

It is an amenable number.

2741621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2741621 is an equidigital number, since it uses as much as digits as its factorization.

2741621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 23.

The square root of 2741621 is about 1655.7841042841. The cubic root of 2741621 is about 139.9595291182.

The spelling of 2741621 in words is "two million, seven hundred forty-one thousand, six hundred twenty-one".