87575863 has 2 divisors, whose sum is σ = 87575864. Its totient is φ = 87575862.

The previous prime is 87575849. The next prime is 87575867. The reversal of 87575863 is 36857578.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87575863 - 2¹³ = 87567671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87575867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43787931 + 43787932.

It is an arithmetic number, because the mean of its divisors is an integer number (43787932).

Almost surely, 2^87575863 is an apocalyptic number.

87575863 is a deficient number, since it is larger than the sum of its proper divisors (1).

87575863 is an equidigital number, since it uses as much as digits as its factorization.

87575863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 49.

The square root of 87575863 is about 9358.1976362973. The cubic root of 87575863 is about 444.0802667832.

The spelling of 87575863 in words is "eighty-seven million, five hundred seventy-five thousand, eight hundred sixty-three".