453999853 has 4 divisors (see below), whose sum is σ = 454052380. Its totient is φ = 453947328.

The previous prime is 453999827. The next prime is 453999877. The reversal of 453999853 is 358999354.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 335146249 + 118853604 = 18307^2 + 10902^2 .

It is a cyclic number.

It is not a de Polignac number, because 453999853 - 2¹³ = 453991661 is a prime.

It is a super-2 number, since 2×453999853² = 412231733048043218, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 453999794 and 453999803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453999803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9900 + ... + 31717.

It is an arithmetic number, because the mean of its divisors is an integer number (113513095).

Almost surely, 2^453999853 is an apocalyptic number.

It is an amenable number.

453999853 is a deficient number, since it is larger than the sum of its proper divisors (52527).

453999853 is a wasteful number, since it uses less digits than its factorization.

453999853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52526.

The product of its digits is 5248800, while the sum is 55.

The square root of 453999853 is about 21307.2723031363. The cubic root of 453999853 is about 768.5732013899.

The spelling of 453999853 in words is "four hundred fifty-three million, nine hundred ninety-nine thousand, eight hundred fifty-three".