4656409 has 2 divisors, whose sum is σ = 4656410. Its totient is φ = 4656408.

The previous prime is 4656397. The next prime is 4656467. The reversal of 4656409 is 9046564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4473225 + 183184 = 2115^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 4656409 - 2¹⁷ = 4525337 is a prime.

It is not a weakly prime, because it can be changed into another prime (4656469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2328204 + 2328205.

It is an arithmetic number, because the mean of its divisors is an integer number (2328205).

Almost surely, 2^4656409 is an apocalyptic number.

It is an amenable number.

4656409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4656409 is an equidigital number, since it uses as much as digits as its factorization.

4656409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 4656409 is about 2157.8714048803. The cubic root of 4656409 is about 166.9874014902.

The spelling of 4656409 in words is "four million, six hundred fifty-six thousand, four hundred nine".