671235353 has 4 divisors (see below), whose sum is σ = 671588148. Its totient is φ = 670882560.

The previous prime is 671235347. The next prime is 671235379. The reversal of 671235353 is 353532176.

It is a happy number.

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 629658649 + 41576704 = 25093^2 + 6448^2 .

It is a cyclic number.

It is not a de Polignac number, because 671235353 - 2⁴ = 671235337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671235853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173528 + ... + 177353.

It is an arithmetic number, because the mean of its divisors is an integer number (167897037).

Almost surely, 2^671235353 is an apocalyptic number.

It is an amenable number.

671235353 is a deficient number, since it is larger than the sum of its proper divisors (352795).

671235353 is a wasteful number, since it uses less digits than its factorization.

671235353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352794.

The product of its digits is 56700, while the sum is 35.

The square root of 671235353 is about 25908.2101465925. The cubic root of 671235353 is about 875.5714810397.

The spelling of 671235353 in words is "six hundred seventy-one million, two hundred thirty-five thousand, three hundred fifty-three".