432766721 has 2 divisors, whose sum is σ = 432766722. Its totient is φ = 432766720.

The previous prime is 432766717. The next prime is 432766799. The reversal of 432766721 is 127667234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410629696 + 22137025 = 20264^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 432766721 - 2² = 432766717 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (432766421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216383360 + 216383361.

It is an arithmetic number, because the mean of its divisors is an integer number (216383361).

Almost surely, 2^432766721 is an apocalyptic number.

It is an amenable number.

432766721 is a deficient number, since it is larger than the sum of its proper divisors (1).

432766721 is an equidigital number, since it uses as much as digits as its factorization.

432766721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The square root of 432766721 is about 20803.0459548596. The cubic root of 432766721 is about 756.3995915084.

The spelling of 432766721 in words is "four hundred thirty-two million, seven hundred sixty-six thousand, seven hundred twenty-one".