287879087 has 2 divisors, whose sum is σ = 287879088. Its totient is φ = 287879086.

The previous prime is 287879083. The next prime is 287879107. The reversal of 287879087 is 780978782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 287879087 - 2² = 287879083 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287879083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143939543 + 143939544.

It is an arithmetic number, because the mean of its divisors is an integer number (143939544).

Almost surely, 2^287879087 is an apocalyptic number.

287879087 is a deficient number, since it is larger than the sum of its proper divisors (1).

287879087 is an equidigital number, since it uses as much as digits as its factorization.

287879087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3161088, while the sum is 56.

The square root of 287879087 is about 16966.9999410621. Note that the first 4 decimals coincide. The cubic root of 287879087 is about 660.2930188032.

The spelling of 287879087 in words is "two hundred eighty-seven million, eight hundred seventy-nine thousand, eighty-seven".