87528123 has 6 divisors (see below), whose sum is σ = 126429524. Its totient is φ = 58352076.

The previous prime is 87528083. The next prime is 87528127. The reversal of 87528123 is 32182578.

87528123 is a `hidden beast` number, since 8 + 7 + 528 + 123 = 666.

It is not a de Polignac number, because 87528123 - 2¹² = 87524027 is a prime.

It is a super-2 number, since 2×87528123² = 15322344631806258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87528127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4862665 + ... + 4862682.

Almost surely, 2^87528123 is an apocalyptic number.

87528123 is a deficient number, since it is larger than the sum of its proper divisors (38901401).

87528123 is a wasteful number, since it uses less digits than its factorization.

87528123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9725353 (or 9725350 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 87528123 is about 9355.6465837482. The cubic root of 87528123 is about 443.9995586799. Note that the first 3 decimals are identical.

The spelling of 87528123 in words is "eighty-seven million, five hundred twenty-eight thousand, one hundred twenty-three".