1679552761 has 2 divisors, whose sum is σ = 1679552762. Its totient is φ = 1679552760.

The previous prime is 1679552737. The next prime is 1679552789. The reversal of 1679552761 is 1672559761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1025216361 + 654336400 = 32019^2 + 25580^2 .

It is an emirp because it is prime and its reverse (1672559761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1679552761 - 2¹¹ = 1679550713 is a prime.

It is not a weakly prime, because it can be changed into another prime (1679552461) 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, 839776380 + 839776381.

It is an arithmetic number, because the mean of its divisors is an integer number (839776381).

Almost surely, 2^1679552761 is an apocalyptic number.

It is an amenable number.

1679552761 is a deficient number, since it is larger than the sum of its proper divisors (1).

1679552761 is an equidigital number, since it uses as much as digits as its factorization.

1679552761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 49.

The square root of 1679552761 is about 40982.3469435317. The cubic root of 1679552761 is about 1188.6788909637.

The spelling of 1679552761 in words is "one billion, six hundred seventy-nine million, five hundred fifty-two thousand, seven hundred sixty-one".