87009125 has 16 divisors (see below), whose sum is σ = 124101120. Its totient is φ = 59662800.

The previous prime is 87009107. The next prime is 87009127. The reversal of 87009125 is 52190078.

It is not a de Polignac number, because 87009125 - 2⁶ = 87009061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87009091 and 87009100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87009127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48845 + ... + 50594.

It is an arithmetic number, because the mean of its divisors is an integer number (7756320).

Almost surely, 2^87009125 is an apocalyptic number.

It is an amenable number.

87009125 is a deficient number, since it is larger than the sum of its proper divisors (37091995).

87009125 is an equidigital number, since it uses as much as digits as its factorization.

87009125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99461 (or 99451 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 87009125 is about 9327.8681916073. The cubic root of 87009125 is about 443.1202533173.

The spelling of 87009125 in words is "eighty-seven million, nine thousand, one hundred twenty-five".