87288373 has 2 divisors, whose sum is σ = 87288374. Its totient is φ = 87288372.

The previous prime is 87288367. The next prime is 87288391. The reversal of 87288373 is 37388278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45064369 + 42224004 = 6713^2 + 6498^2 .

It is a cyclic number.

It is not a de Polignac number, because 87288373 - 2⁹ = 87287861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87288973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43644186 + 43644187.

It is an arithmetic number, because the mean of its divisors is an integer number (43644187).

Almost surely, 2^87288373 is an apocalyptic number.

It is an amenable number.

87288373 is a deficient number, since it is larger than the sum of its proper divisors (1).

87288373 is an equidigital number, since it uses as much as digits as its factorization.

87288373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 46.

The square root of 87288373 is about 9342.8246799349. The cubic root of 87288373 is about 443.5937986765.

The spelling of 87288373 in words is "eighty-seven million, two hundred eighty-eight thousand, three hundred seventy-three".