87580373 has 2 divisors, whose sum is σ = 87580374. Its totient is φ = 87580372.

The previous prime is 87580349. The next prime is 87580393. The reversal of 87580373 is 37308578.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79245604 + 8334769 = 8902^2 + 2887^2 .

It is a cyclic number.

It is not a de Polignac number, because 87580373 - 2⁶ = 87580309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87580373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87580303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43790186 + 43790187.

It is an arithmetic number, because the mean of its divisors is an integer number (43790187).

Almost surely, 2^87580373 is an apocalyptic number.

It is an amenable number.

87580373 is a deficient number, since it is larger than the sum of its proper divisors (1).

87580373 is an equidigital number, since it uses as much as digits as its factorization.

87580373 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 87580373 is about 9358.4385983988. The cubic root of 87580373 is about 444.0878897650.

The spelling of 87580373 in words is "eighty-seven million, five hundred eighty thousand, three hundred seventy-three".