87530293 has 2 divisors, whose sum is σ = 87530294. Its totient is φ = 87530292.

The previous prime is 87530273. The next prime is 87530347. The reversal of 87530293 is 39203578.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43996689 + 43533604 = 6633^2 + 6598^2 .

It is a cyclic number.

It is not a de Polignac number, because 87530293 - 2¹³ = 87522101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87530243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43765146 + 43765147.

It is an arithmetic number, because the mean of its divisors is an integer number (43765147).

Almost surely, 2^87530293 is an apocalyptic number.

It is an amenable number.

87530293 is a deficient number, since it is larger than the sum of its proper divisors (1).

87530293 is an equidigital number, since it uses as much as digits as its factorization.

87530293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 87530293 is about 9355.7625557728. The cubic root of 87530293 is about 444.0032278666.

The spelling of 87530293 in words is "eighty-seven million, five hundred thirty thousand, two hundred ninety-three".