454487477 has 2 divisors, whose sum is σ = 454487478. Its totient is φ = 454487476.

The previous prime is 454487447. The next prime is 454487479. The reversal of 454487477 is 774784454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 432265681 + 22221796 = 20791^2 + 4714^2 .

It is a cyclic number.

It is not a de Polignac number, because 454487477 - 2⁶ = 454487413 is a prime.

Together with 454487479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454487479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227243738 + 227243739.

It is an arithmetic number, because the mean of its divisors is an integer number (227243739).

Almost surely, 2^454487477 is an apocalyptic number.

It is an amenable number.

454487477 is a deficient number, since it is larger than the sum of its proper divisors (1).

454487477 is an equidigital number, since it uses as much as digits as its factorization.

454487477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3512320, while the sum is 50.

The square root of 454487477 is about 21318.7118982363. The cubic root of 454487477 is about 768.8482680294.

It can be divided in two parts, 45448 and 7477, that added together give a palindrome (52925).

The spelling of 454487477 in words is "four hundred fifty-four million, four hundred eighty-seven thousand, four hundred seventy-seven".