87873053 has 2 divisors, whose sum is σ = 87873054. Its totient is φ = 87873052.

The previous prime is 87872999. The next prime is 87873067. The reversal of 87873053 is 35037878.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83960569 + 3912484 = 9163^2 + 1978^2 .

It is a cyclic number.

It is not a de Polignac number, because 87873053 - 2⁶ = 87872989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87873053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87873073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43936526 + 43936527.

It is an arithmetic number, because the mean of its divisors is an integer number (43936527).

Almost surely, 2^87873053 is an apocalyptic number.

It is an amenable number.

87873053 is a deficient number, since it is larger than the sum of its proper divisors (1).

87873053 is an equidigital number, since it uses as much as digits as its factorization.

87873053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 87873053 is about 9374.0627798196. The cubic root of 87873053 is about 444.5820306370.

The spelling of 87873053 in words is "eighty-seven million, eight hundred seventy-three thousand, fifty-three".