670129767 has 20 divisors (see below), whose sum is σ = 1035580920. Its totient is φ = 431346384.

The previous prime is 670129741. The next prime is 670129769. The reversal of 670129767 is 767921076.

It is not a de Polignac number, because 670129767 - 2¹⁴ = 670113383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670129769) 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 19 ways as a sum of consecutive naturals, for example, 140293 + ... + 144990.

It is an arithmetic number, because the mean of its divisors is an integer number (51779046).

Almost surely, 2^670129767 is an apocalyptic number.

670129767 is a deficient number, since it is larger than the sum of its proper divisors (365451153).

670129767 is a wasteful number, since it uses less digits than its factorization.

670129767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285324 (or 285315 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 670129767 is about 25886.8647580197. The cubic root of 670129767 is about 875.0905014418.

The spelling of 670129767 in words is "six hundred seventy million, one hundred twenty-nine thousand, seven hundred sixty-seven".