1670741 has 2 divisors, whose sum is σ = 1670742. Its totient is φ = 1670740.

The previous prime is 1670723. The next prime is 1670761. The reversal of 1670741 is 1470761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1562500 + 108241 = 1250^2 + 329^2 .

It is a cyclic number.

It is not a de Polignac number, because 1670741 - 2¹⁴ = 1654357 is a prime.

It is a Sophie Germain prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1670741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1670761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835370 + 835371.

It is an arithmetic number, because the mean of its divisors is an integer number (835371).

2^1670741 is an apocalyptic number.

It is an amenable number.

1670741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670741 is an equidigital number, since it uses as much as digits as its factorization.

1670741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 1670741 is about 1292.5714680435. The cubic root of 1670741 is about 118.6596446560.

The spelling of 1670741 in words is "one million, six hundred seventy thousand, seven hundred forty-one".