1670983 has 2 divisors, whose sum is σ = 1670984. Its totient is φ = 1670982.

The previous prime is 1670971. The next prime is 1671041. The reversal of 1670983 is 3890761.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1670983 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1670923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835491 + 835492.

It is an arithmetic number, because the mean of its divisors is an integer number (835492).

2^1670983 is an apocalyptic number.

1670983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670983 is an equidigital number, since it uses as much as digits as its factorization.

1670983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1670983 is about 1292.6650764989. The cubic root of 1670983 is about 118.6653735008.

The spelling of 1670983 in words is "one million, six hundred seventy thousand, nine hundred eighty-three".