454663789 has 2 divisors, whose sum is σ = 454663790. Its totient is φ = 454663788.

The previous prime is 454663757. The next prime is 454663799. The reversal of 454663789 is 987366454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291897225 + 162766564 = 17085^2 + 12758^2 .

It is a cyclic number.

It is not a de Polignac number, because 454663789 - 2⁵ = 454663757 is a prime.

It is a super-2 number, since 2×454663789² = 413438322055673042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454663739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227331894 + 227331895.

It is an arithmetic number, because the mean of its divisors is an integer number (227331895).

Almost surely, 2^454663789 is an apocalyptic number.

It is an amenable number.

454663789 is a deficient number, since it is larger than the sum of its proper divisors (1).

454663789 is an equidigital number, since it uses as much as digits as its factorization.

454663789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 52.

The square root of 454663789 is about 21322.8466439169. The cubic root of 454663789 is about 768.9476764526.

The spelling of 454663789 in words is "four hundred fifty-four million, six hundred sixty-three thousand, seven hundred eighty-nine".