670019711 has 4 divisors (see below), whose sum is σ = 670082352. Its totient is φ = 669957072.

The previous prime is 670019699. The next prime is 670019729. The reversal of 670019711 is 117910076.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670019711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670019731) 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, 10790 + ... + 38163.

It is an arithmetic number, because the mean of its divisors is an integer number (167520588).

Almost surely, 2^670019711 is an apocalyptic number.

670019711 is a deficient number, since it is larger than the sum of its proper divisors (62641).

670019711 is a wasteful number, since it uses less digits than its factorization.

670019711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62640.

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 670019711 is about 25884.7389594719. The cubic root of 670019711 is about 875.0425931919.

Adding to 670019711 its reverse (117910076), we get a palindrome (787929787).

The spelling of 670019711 in words is "six hundred seventy million, nineteen thousand, seven hundred eleven".