670235767 has 2 divisors, whose sum is σ = 670235768. Its totient is φ = 670235766.

The previous prime is 670235689. The next prime is 670235807. The reversal of 670235767 is 767532076.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670235767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670230767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335117883 + 335117884.

It is an arithmetic number, because the mean of its divisors is an integer number (335117884).

Almost surely, 2^670235767 is an apocalyptic number.

670235767 is a deficient number, since it is larger than the sum of its proper divisors (1).

670235767 is an equidigital number, since it uses as much as digits as its factorization.

670235767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 370440, while the sum is 43.

The square root of 670235767 is about 25888.9120474384. The cubic root of 670235767 is about 875.1366391240.

The spelling of 670235767 in words is "six hundred seventy million, two hundred thirty-five thousand, seven hundred sixty-seven".