454421663 has 2 divisors, whose sum is σ = 454421664. Its totient is φ = 454421662.

The previous prime is 454421659. The next prime is 454421701. The reversal of 454421663 is 366124454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 454421663 - 2² = 454421659 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454421063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227210831 + 227210832.

It is an arithmetic number, because the mean of its divisors is an integer number (227210832).

Almost surely, 2^454421663 is an apocalyptic number.

454421663 is a deficient number, since it is larger than the sum of its proper divisors (1).

454421663 is an equidigital number, since it uses as much as digits as its factorization.

454421663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 35.

The square root of 454421663 is about 21317.1682687922. The cubic root of 454421663 is about 768.8111541189.

The spelling of 454421663 in words is "four hundred fifty-four million, four hundred twenty-one thousand, six hundred sixty-three".