452405689 has 2 divisors, whose sum is σ = 452405690. Its totient is φ = 452405688.

The previous prime is 452405669. The next prime is 452405711. The reversal of 452405689 is 986504254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298149289 + 154256400 = 17267^2 + 12420^2 .

It is a cyclic number.

It is not a de Polignac number, because 452405689 - 2²³ = 444017081 is a prime.

It is equal to p_23973667 and since 452405689 and 23973667 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (452405669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226202844 + 226202845.

It is an arithmetic number, because the mean of its divisors is an integer number (226202845).

Almost surely, 2^452405689 is an apocalyptic number.

It is an amenable number.

452405689 is a deficient number, since it is larger than the sum of its proper divisors (1).

452405689 is an equidigital number, since it uses as much as digits as its factorization.

452405689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 452405689 is about 21269.8304882761. The cubic root of 452405689 is about 767.6725633479.

The spelling of 452405689 in words is "four hundred fifty-two million, four hundred five thousand, six hundred eighty-nine".