286380893 has 2 divisors, whose sum is σ = 286380894. Its totient is φ = 286380892.

The previous prime is 286380877. The next prime is 286380923. The reversal of 286380893 is 398083682.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192155044 + 94225849 = 13862^2 + 9707^2 .

It is a cyclic number.

It is not a de Polignac number, because 286380893 - 2⁴ = 286380877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286380593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143190446 + 143190447.

It is an arithmetic number, because the mean of its divisors is an integer number (143190447).

Almost surely, 2^286380893 is an apocalyptic number.

It is an amenable number.

286380893 is a deficient number, since it is larger than the sum of its proper divisors (1).

286380893 is an equidigital number, since it uses as much as digits as its factorization.

286380893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 286380893 is about 16922.7921159601. The cubic root of 286380893 is about 659.1455832325.

The spelling of 286380893 in words is "two hundred eighty-six million, three hundred eighty thousand, eight hundred ninety-three".