670555547 has 8 divisors (see below), whose sum is σ = 700047360. Its totient is φ = 641091880.

The previous prime is 670555541. The next prime is 670555549. The reversal of 670555547 is 745555076.

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

It is not a de Polignac number, because 670555547 - 2¹⁰ = 670554523 is a prime.

It is a super-2 number, since 2×670555547² = 899289483224938418, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 670555498 and 670555507.

It is not an unprimeable number, because it can be changed into a prime (670555541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52454 + ... + 63972.

It is an arithmetic number, because the mean of its divisors is an integer number (87505920).

Almost surely, 2^670555547 is an apocalyptic number.

670555547 is a deficient number, since it is larger than the sum of its proper divisors (29491813).

670555547 is a wasteful number, since it uses less digits than its factorization.

670555547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14073.

The product of its (nonzero) digits is 735000, while the sum is 44.

The square root of 670555547 is about 25895.0873140061. The cubic root of 670555547 is about 875.2757974685.

The spelling of 670555547 in words is "six hundred seventy million, five hundred fifty-five thousand, five hundred forty-seven".