670256759 has 2 divisors, whose sum is σ = 670256760. Its totient is φ = 670256758.

The previous prime is 670256753. The next prime is 670256767. The reversal of 670256759 is 957652076.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670256759 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670256753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335128379 + 335128380.

It is an arithmetic number, because the mean of its divisors is an integer number (335128380).

Almost surely, 2^670256759 is an apocalyptic number.

670256759 is a deficient number, since it is larger than the sum of its proper divisors (1).

670256759 is an equidigital number, since it uses as much as digits as its factorization.

670256759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 793800, while the sum is 47.

The square root of 670256759 is about 25889.3174687940. The cubic root of 670256759 is about 875.1457755491.

The spelling of 670256759 in words is "six hundred seventy million, two hundred fifty-six thousand, seven hundred fifty-nine".