1670756117 has 2 divisors, whose sum is σ = 1670756118. Its totient is φ = 1670756116.

The previous prime is 1670756111. The next prime is 1670756137. The reversal of 1670756117 is 7116570761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1301117041 + 369639076 = 36071^2 + 19226^2 .

It is a cyclic number.

It is not a de Polignac number, because 1670756117 - 2²⁴ = 1653978901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1670756111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835378058 + 835378059.

It is an arithmetic number, because the mean of its divisors is an integer number (835378059).

Almost surely, 2^1670756117 is an apocalyptic number.

It is an amenable number.

1670756117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670756117 is an equidigital number, since it uses as much as digits as its factorization.

1670756117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61740, while the sum is 41.

The square root of 1670756117 is about 40874.8836940241. The cubic root of 1670756117 is about 1186.6000253557.

The spelling of 1670756117 in words is "one billion, six hundred seventy million, seven hundred fifty-six thousand, one hundred seventeen".