87125427 has 12 divisors (see below), whose sum is σ = 127572744. Its totient is φ = 57287520.

The previous prime is 87125419. The next prime is 87125443. The reversal of 87125427 is 72452178.

It is not a de Polignac number, because 87125427 - 2³ = 87125419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87125391 and 87125400.

It is not an unprimeable number, because it can be changed into a prime (87125447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65649 + ... + 66962.

It is an arithmetic number, because the mean of its divisors is an integer number (10631062).

Almost surely, 2^87125427 is an apocalyptic number.

87125427 is a deficient number, since it is larger than the sum of its proper divisors (40447317).

87125427 is a wasteful number, since it uses less digits than its factorization.

87125427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132690 (or 132687 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 87125427 is about 9334.1002244458. The cubic root of 87125427 is about 443.3175997708.

The spelling of 87125427 in words is "eighty-seven million, one hundred twenty-five thousand, four hundred twenty-seven".