455486993 has 4 divisors (see below), whose sum is σ = 490524468. Its totient is φ = 420449520.

The previous prime is 455486957. The next prime is 455487017. The reversal of 455486993 is 399684554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 232044289 + 223442704 = 15233^2 + 14948^2 .

It is a cyclic number.

It is not a de Polignac number, because 455486993 - 2¹² = 455482897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455486923) 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, 17518718 + ... + 17518743.

It is an arithmetic number, because the mean of its divisors is an integer number (122631117).

Almost surely, 2^455486993 is an apocalyptic number.

It is an amenable number.

455486993 is a deficient number, since it is larger than the sum of its proper divisors (35037475).

455486993 is a wasteful number, since it uses less digits than its factorization.

455486993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35037474.

The product of its digits is 4665600, while the sum is 53.

The square root of 455486993 is about 21342.1412468384. The cubic root of 455486993 is about 769.4114764222.

The spelling of 455486993 in words is "four hundred fifty-five million, four hundred eighty-six thousand, nine hundred ninety-three".