87473 has 2 divisors, whose sum is σ = 87474. Its totient is φ = 87472.

The previous prime is 87443. The next prime is 87481. The reversal of 87473 is 37478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85264 + 2209 = 292^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 87473 - 2¹⁴ = 71089 is a prime.

It is not a weakly prime, because it can be changed into another prime (87403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43736 + 43737.

It is an arithmetic number, because the mean of its divisors is an integer number (43737).

2⁸⁷⁴⁷³ is an apocalyptic number.

It is an amenable number.

87473 is a deficient number, since it is larger than the sum of its proper divisors (1).

87473 is an equidigital number, since it uses as much as digits as its factorization.

87473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 29.

The square root of 87473 is about 295.7583473040. The cubic root of 87473 is about 44.3906332539.

The spelling of 87473 in words is "eighty-seven thousand, four hundred seventy-three".