454788391 has 2 divisors, whose sum is σ = 454788392. Its totient is φ = 454788390.

The previous prime is 454788331. The next prime is 454788409. The reversal of 454788391 is 193887454.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454788391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454788311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227394195 + 227394196.

It is an arithmetic number, because the mean of its divisors is an integer number (227394196).

Almost surely, 2^454788391 is an apocalyptic number.

454788391 is a deficient number, since it is larger than the sum of its proper divisors (1).

454788391 is an equidigital number, since it uses as much as digits as its factorization.

454788391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 49.

The square root of 454788391 is about 21325.7682393859. The cubic root of 454788391 is about 769.0179141898.

The spelling of 454788391 in words is "four hundred fifty-four million, seven hundred eighty-eight thousand, three hundred ninety-one".