2664601 has 2 divisors, whose sum is σ = 2664602. Its totient is φ = 2664600.

The previous prime is 2664593. The next prime is 2664643. The reversal of 2664601 is 1064662.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2637376 + 27225 = 1624^2 + 165^2 .

It is a cyclic number.

It is not a de Polignac number, because 2664601 - 2³ = 2664593 is a prime.

It is not a weakly prime, because it can be changed into another prime (2664661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332300 + 1332301.

It is an arithmetic number, because the mean of its divisors is an integer number (1332301).

2^2664601 is an apocalyptic number.

It is an amenable number.

2664601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2664601 is an equidigital number, since it uses as much as digits as its factorization.

2664601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2664601 is about 1632.3605606605. The cubic root of 2664601 is about 138.6364392888.

The spelling of 2664601 in words is "two million, six hundred sixty-four thousand, six hundred one".