453634813 has 4 divisors (see below), whose sum is σ = 453814780. Its totient is φ = 453454848.

The previous prime is 453634807. The next prime is 453634877. The reversal of 453634813 is 318436354.

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 308986084 + 144648729 = 17578^2 + 12027^2 .

It is a cyclic number.

It is not a de Polignac number, because 453634813 - 2⁹ = 453634301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453634213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86148 + ... + 91261.

It is an arithmetic number, because the mean of its divisors is an integer number (113453695).

Almost surely, 2^453634813 is an apocalyptic number.

It is an amenable number.

453634813 is a deficient number, since it is larger than the sum of its proper divisors (179967).

453634813 is a wasteful number, since it uses less digits than its factorization.

453634813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179966.

The product of its digits is 103680, while the sum is 37.

The square root of 453634813 is about 21298.7044911187. The cubic root of 453634813 is about 768.3671549281.

It can be divided in two parts, 45363 and 4813, that added together give a square (50176 = 224²).

The spelling of 453634813 in words is "four hundred fifty-three million, six hundred thirty-four thousand, eight hundred thirteen".