670026767 has 2 divisors, whose sum is σ = 670026768. Its totient is φ = 670026766.

The previous prime is 670026743. The next prime is 670026769. The reversal of 670026767 is 767620076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670026767 - 2²² = 665832463 is a prime.

Together with 670026769, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670026769) 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 as a sum of consecutive naturals, namely, 335013383 + 335013384.

It is an arithmetic number, because the mean of its divisors is an integer number (335013384).

Almost surely, 2^670026767 is an apocalyptic number.

670026767 is a deficient number, since it is larger than the sum of its proper divisors (1).

670026767 is an equidigital number, since it uses as much as digits as its factorization.

670026767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 670026767 is about 25884.8752556392. The cubic root of 670026767 is about 875.0456648821.

The spelling of 670026767 in words is "six hundred seventy million, twenty-six thousand, seven hundred sixty-seven".