2664817 has 2 divisors, whose sum is σ = 2664818. Its totient is φ = 2664816.

The previous prime is 2664811. The next prime is 2664829. The reversal of 2664817 is 7184662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2611456 + 53361 = 1616^2 + 231^2 .

It is a cyclic number.

It is not a de Polignac number, because 2664817 - 2⁷ = 2664689 is a prime.

It is not a weakly prime, because it can be changed into another prime (2664811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332408 + 1332409.

It is an arithmetic number, because the mean of its divisors is an integer number (1332409).

2^2664817 is an apocalyptic number.

It is an amenable number.

2664817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664817 is an equidigital number, since it uses as much as digits as its factorization.

2664817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 2664817 is about 1632.4267211731. The cubic root of 2664817 is about 138.6401852733.

It can be divided in two parts, 2664 and 817, that added together give a square (3481 = 59²).

The spelling of 2664817 in words is "two million, six hundred sixty-four thousand, eight hundred seventeen".