287673137 has 2 divisors, whose sum is σ = 287673138. Its totient is φ = 287673136.

The previous prime is 287673109. The next prime is 287673151. The reversal of 287673137 is 731376782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146918641 + 140754496 = 12121^2 + 11864^2 .

It is a cyclic number.

It is not a de Polignac number, because 287673137 - 2⁶ = 287673073 is a prime.

It is not a weakly prime, because it can be changed into another prime (287673107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143836568 + 143836569.

It is an arithmetic number, because the mean of its divisors is an integer number (143836569).

Almost surely, 2^287673137 is an apocalyptic number.

It is an amenable number.

287673137 is a deficient number, since it is larger than the sum of its proper divisors (1).

287673137 is an equidigital number, since it uses as much as digits as its factorization.

287673137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352, while the sum is 44.

The square root of 287673137 is about 16960.9297209793. The cubic root of 287673137 is about 660.1355223693.

The spelling of 287673137 in words is "two hundred eighty-seven million, six hundred seventy-three thousand, one hundred thirty-seven".