454738817 has 4 divisors (see below), whose sum is σ = 489718740. Its totient is φ = 419758896.

The previous prime is 454738807. The next prime is 454738871. The reversal of 454738817 is 718837454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 718837454 = 2 ⋅359418727.

It can be written as a sum of positive squares in 2 ways, for example, as 266472976 + 188265841 = 16324^2 + 13721^2 .

It is a cyclic number.

It is not a de Polignac number, because 454738817 - 2²⁰ = 453690241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454738807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17489942 + ... + 17489967.

It is an arithmetic number, because the mean of its divisors is an integer number (122429685).

Almost surely, 2^454738817 is an apocalyptic number.

It is an amenable number.

454738817 is a deficient number, since it is larger than the sum of its proper divisors (34979923).

454738817 is a wasteful number, since it uses less digits than its factorization.

454738817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34979922.

The product of its digits is 752640, while the sum is 47.

The square root of 454738817 is about 21324.6059049165. The cubic root of 454738817 is about 768.9899710261.

The spelling of 454738817 in words is "four hundred fifty-four million, seven hundred thirty-eight thousand, eight hundred seventeen".