1704630649 has 2 divisors, whose sum is σ = 1704630650. Its totient is φ = 1704630648.

The previous prime is 1704630601. The next prime is 1704630709. The reversal of 1704630649 is 9460364071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1531313424 + 173317225 = 39132^2 + 13165^2 .

It is a cyclic number.

It is not a de Polignac number, because 1704630649 - 2²⁹ = 1167759737 is a prime.

It is a super-2 number, since 2×1704630649² = 5811531299020322402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1704930649) 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, 852315324 + 852315325.

It is an arithmetic number, because the mean of its divisors is an integer number (852315325).

Almost surely, 2^1704630649 is an apocalyptic number.

It is an amenable number.

1704630649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1704630649 is an equidigital number, since it uses as much as digits as its factorization.

1704630649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 1704630649 is about 41287.1729354287. The cubic root of 1704630649 is about 1194.5658568956.

The spelling of 1704630649 in words is "one billion, seven hundred four million, six hundred thirty thousand, six hundred forty-nine".