670768553 has 16 divisors (see below), whose sum is σ = 826425600. Its totient is φ = 530162496.

The previous prime is 670768489. The next prime is 670768559. The reversal of 670768553 is 355867076.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 670768553 - 2⁶ = 670768489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 670768498 and 670768507.

It is not an unprimeable number, because it can be changed into a prime (670768559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98348 + ... + 104946.

It is an arithmetic number, because the mean of its divisors is an integer number (51651600).

Almost surely, 2^670768553 is an apocalyptic number.

It is an amenable number.

670768553 is a deficient number, since it is larger than the sum of its proper divisors (155657047).

670768553 is a wasteful number, since it uses less digits than its factorization.

670768553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7736.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 670768553 is about 25899.1998525051. The cubic root of 670768553 is about 875.3684665296.

The spelling of 670768553 in words is "six hundred seventy million, seven hundred sixty-eight thousand, five hundred fifty-three".