363287861 has 2 divisors, whose sum is σ = 363287862. Its totient is φ = 363287860.

The previous prime is 363287851. The next prime is 363287933. The reversal of 363287861 is 168782363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285407236 + 77880625 = 16894^2 + 8825^2 .

It is a cyclic number.

It is not a de Polignac number, because 363287861 - 2¹⁰ = 363286837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (363287801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181643930 + 181643931.

It is an arithmetic number, because the mean of its divisors is an integer number (181643931).

Almost surely, 2^363287861 is an apocalyptic number.

It is an amenable number.

363287861 is a deficient number, since it is larger than the sum of its proper divisors (1).

363287861 is an equidigital number, since it uses as much as digits as its factorization.

363287861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 363287861 is about 19060.1117782661. Note that the first 3 decimals coincide. The cubic root of 363287861 is about 713.5377624458.

The spelling of 363287861 in words is "three hundred sixty-three million, two hundred eighty-seven thousand, eight hundred sixty-one".