87529427 has 2 divisors, whose sum is σ = 87529428. Its totient is φ = 87529426.

The previous prime is 87529423. The next prime is 87529433. The reversal of 87529427 is 72492578.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87529427 - 2² = 87529423 is a prime.

It is a super-2 number, since 2×87529427² = 15322801181896658, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87529423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43764713 + 43764714.

It is an arithmetic number, because the mean of its divisors is an integer number (43764714).

Almost surely, 2^87529427 is an apocalyptic number.

87529427 is a deficient number, since it is larger than the sum of its proper divisors (1).

87529427 is an equidigital number, since it uses as much as digits as its factorization.

87529427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 44.

The square root of 87529427 is about 9355.7162740220. The cubic root of 87529427 is about 444.0017635809.

The spelling of 87529427 in words is "eighty-seven million, five hundred twenty-nine thousand, four hundred twenty-seven".