670855767 has 8 divisors (see below), whose sum is σ = 899645424. Its totient is φ = 444651648.

The previous prime is 670855763. The next prime is 670855799. The reversal of 670855767 is 767558076.

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

It is not a de Polignac number, because 670855767 - 2² = 670855763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670855763) 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 7 ways as a sum of consecutive naturals, for example, 645778 + ... + 646815.

It is an arithmetic number, because the mean of its divisors is an integer number (112455678).

Almost surely, 2^670855767 is an apocalyptic number.

670855767 is a deficient number, since it is larger than the sum of its proper divisors (228789657).

670855767 is a wasteful number, since it uses less digits than its factorization.

670855767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292769.

The product of its (nonzero) digits is 2469600, while the sum is 51.

The square root of 670855767 is about 25900.8835177490. The cubic root of 670855767 is about 875.4064036474.

The spelling of 670855767 in words is "six hundred seventy million, eight hundred fifty-five thousand, seven hundred sixty-seven".