452646643 has 4 divisors (see below), whose sum is σ = 460318680. Its totient is φ = 444974608.

The previous prime is 452646629. The next prime is 452646661. The reversal of 452646643 is 346646254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346646254 = 2 ⋅173323127.

It is a cyclic number.

It is not a de Polignac number, because 452646643 - 2⁵ = 452646611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 452646596 and 452646605.

It is not an unprimeable number, because it can be changed into a prime (452646673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3835930 + ... + 3836047.

It is an arithmetic number, because the mean of its divisors is an integer number (115079670).

Almost surely, 2^452646643 is an apocalyptic number.

452646643 is a deficient number, since it is larger than the sum of its proper divisors (7672037).

452646643 is an equidigital number, since it uses as much as digits as its factorization.

452646643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7672036.

The product of its digits is 414720, while the sum is 40.

The square root of 452646643 is about 21275.4939543128. The cubic root of 452646643 is about 767.8088281722.

The spelling of 452646643 in words is "four hundred fifty-two million, six hundred forty-six thousand, six hundred forty-three".