288490877 has 2 divisors, whose sum is σ = 288490878. Its totient is φ = 288490876.

The previous prime is 288490861. The next prime is 288490879. The reversal of 288490877 is 778094882.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259016836 + 29474041 = 16094^2 + 5429^2 .

It is a cyclic number.

It is not a de Polignac number, because 288490877 - 2⁴ = 288490861 is a prime.

It is a super-2 number, since 2×288490877² = 166453972224458258, which contains 22 as substring.

Together with 288490879, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288490879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144245438 + 144245439.

It is an arithmetic number, because the mean of its divisors is an integer number (144245439).

Almost surely, 2^288490877 is an apocalyptic number.

It is an amenable number.

288490877 is a deficient number, since it is larger than the sum of its proper divisors (1).

288490877 is an equidigital number, since it uses as much as digits as its factorization.

288490877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1806336, while the sum is 53.

The square root of 288490877 is about 16985.0191933951. The cubic root of 288490877 is about 660.7604312931.

The spelling of 288490877 in words is "two hundred eighty-eight million, four hundred ninety thousand, eight hundred seventy-seven".