3088721 has 2 divisors, whose sum is σ = 3088722. Its totient is φ = 3088720.

The previous prime is 3088717. The next prime is 3088741. The reversal of 3088721 is 1278803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2958400 + 130321 = 1720^2 + 361^2 .

It is an emirp because it is prime and its reverse (1278803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3088721 - 2² = 3088717 is a prime.

It is not a weakly prime, because it can be changed into another prime (3088711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1544360 + 1544361.

It is an arithmetic number, because the mean of its divisors is an integer number (1544361).

Almost surely, 2^3088721 is an apocalyptic number.

It is an amenable number.

3088721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3088721 is an equidigital number, since it uses as much as digits as its factorization.

3088721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 3088721 is about 1757.4757466321. The cubic root of 3088721 is about 145.6329209713.

The spelling of 3088721 in words is "three million, eighty-eight thousand, seven hundred twenty-one".