670885243 has 4 divisors (see below), whose sum is σ = 766726000. Its totient is φ = 575044488.

The previous prime is 670885223. The next prime is 670885253. The reversal of 670885243 is 342588076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670885243 - 2¹⁷ = 670754171 is a prime.

It is a super-3 number, since 3×670885243³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670885243.

It is not an unprimeable number, because it can be changed into a prime (670885223) 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, 47920368 + ... + 47920381.

It is an arithmetic number, because the mean of its divisors is an integer number (191681500).

Almost surely, 2^670885243 is an apocalyptic number.

670885243 is a deficient number, since it is larger than the sum of its proper divisors (95840757).

670885243 is an equidigital number, since it uses as much as digits as its factorization.

670885243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95840756.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 670885243 is about 25901.4525268372. The cubic root of 670885243 is about 875.4192246354.

The spelling of 670885243 in words is "six hundred seventy million, eight hundred eighty-five thousand, two hundred forty-three".