368827561 has 2 divisors, whose sum is σ = 368827562. Its totient is φ = 368827560.

The previous prime is 368827541. The next prime is 368827567. The reversal of 368827561 is 165728863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263867536 + 104960025 = 16244^2 + 10245^2 .

It is a cyclic number.

It is not a de Polignac number, because 368827561 - 2⁹ = 368827049 is a prime.

It is not a weakly prime, because it can be changed into another prime (368827567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184413780 + 184413781.

It is an arithmetic number, because the mean of its divisors is an integer number (184413781).

Almost surely, 2^368827561 is an apocalyptic number.

It is an amenable number.

368827561 is a deficient number, since it is larger than the sum of its proper divisors (1).

368827561 is an equidigital number, since it uses as much as digits as its factorization.

368827561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 368827561 is about 19204.8837799139. The cubic root of 368827561 is about 717.1463442644.

The spelling of 368827561 in words is "three hundred sixty-eight million, eight hundred twenty-seven thousand, five hundred sixty-one".