287746049 has 2 divisors, whose sum is σ = 287746050. Its totient is φ = 287746048.

The previous prime is 287746021. The next prime is 287746099. The reversal of 287746049 is 940647782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245079025 + 42667024 = 15655^2 + 6532^2 .

It is a cyclic number.

It is not a de Polignac number, because 287746049 - 2⁸ = 287745793 is a prime.

It is a super-2 number, since 2×287746049² = 165595577430220802, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 287745994 and 287746012.

It is not a weakly prime, because it can be changed into another prime (287746099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143873024 + 143873025.

It is an arithmetic number, because the mean of its divisors is an integer number (143873025).

Almost surely, 2^287746049 is an apocalyptic number.

It is an amenable number.

287746049 is a deficient number, since it is larger than the sum of its proper divisors (1).

287746049 is an equidigital number, since it uses as much as digits as its factorization.

287746049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 287746049 is about 16963.0789952768. The cubic root of 287746049 is about 660.1912890586.

The spelling of 287746049 in words is "two hundred eighty-seven million, seven hundred forty-six thousand, forty-nine".