1670405327 has 2 divisors, whose sum is σ = 1670405328. Its totient is φ = 1670405326.

The previous prime is 1670405323. The next prime is 1670405357. The reversal of 1670405327 is 7235040761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1670405327 - 2² = 1670405323 is a prime.

It is a super-3 number, since 3×1670405327³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1670405323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835202663 + 835202664.

It is an arithmetic number, because the mean of its divisors is an integer number (835202664).

Almost surely, 2^1670405327 is an apocalyptic number.

1670405327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670405327 is an equidigital number, since it uses as much as digits as its factorization.

1670405327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 1670405327 is about 40870.5924473820. The cubic root of 1670405327 is about 1186.5169738252.

The spelling of 1670405327 in words is "one billion, six hundred seventy million, four hundred five thousand, three hundred twenty-seven".