452926781 has 2 divisors, whose sum is σ = 452926782. Its totient is φ = 452926780.

The previous prime is 452926753. The next prime is 452926819. The reversal of 452926781 is 187629254.

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., 315240025 + 137686756 = 17755^2 + 11734^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452926781 is a prime.

It is a super-2 number, since 2×452926781² = 410285337894043922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (452926751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226463390 + 226463391.

It is an arithmetic number, because the mean of its divisors is an integer number (226463391).

Almost surely, 2^452926781 is an apocalyptic number.

It is an amenable number.

452926781 is a deficient number, since it is larger than the sum of its proper divisors (1).

452926781 is an equidigital number, since it uses as much as digits as its factorization.

452926781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 452926781 is about 21282.0765199263. The cubic root of 452926781 is about 767.9671916368.

The spelling of 452926781 in words is "four hundred fifty-two million, nine hundred twenty-six thousand, seven hundred eighty-one".