813053629 has 4 divisors (see below), whose sum is σ = 817545820. Its totient is φ = 808561440.

The previous prime is 813053627. The next prime is 813053639. The reversal of 813053629 is 926350318.

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 44488900 + 768564729 = 6670^2 + 27723^2 .

It is a cyclic number.

It is not a de Polignac number, because 813053629 - 2¹ = 813053627 is a prime.

It is a super-3 number, since 3×813053629³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813053627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2245824 + ... + 2246185.

It is an arithmetic number, because the mean of its divisors is an integer number (204386455).

Almost surely, 2^813053629 is an apocalyptic number.

It is an amenable number.

813053629 is a deficient number, since it is larger than the sum of its proper divisors (4492191).

813053629 is a wasteful number, since it uses less digits than its factorization.

813053629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492190.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 813053629 is about 28514.0952688315. The cubic root of 813053629 is about 933.3396822556.

The spelling of 813053629 in words is "eight hundred thirteen million, fifty-three thousand, six hundred twenty-nine".