671223535 has 8 divisors (see below), whose sum is σ = 820666080. Its totient is φ = 526846944.

The previous prime is 671223491. The next prime is 671223541. The reversal of 671223535 is 535322176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 671223535 - 2²¹ = 669126383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671223535.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1266195 + ... + 1266724.

It is an arithmetic number, because the mean of its divisors is an integer number (102583260).

Almost surely, 2^671223535 is an apocalyptic number.

671223535 is a deficient number, since it is larger than the sum of its proper divisors (149442545).

671223535 is a wasteful number, since it uses less digits than its factorization.

671223535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532977.

The product of its digits is 37800, while the sum is 34.

The square root of 671223535 is about 25907.9820711687. The cubic root of 671223535 is about 875.5663424722.

The spelling of 671223535 in words is "six hundred seventy-one million, two hundred twenty-three thousand, five hundred thirty-five".