87938025 has 96 divisors (see below), whose sum is σ = 179988480. Its totient is φ = 36971520.

The previous prime is 87938017. The next prime is 87938029. The reversal of 87938025 is 52083978.

It is not a de Polignac number, because 87938025 - 2³ = 87938017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87938029) 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 in 95 ways as a sum of consecutive naturals, for example, 526492 + ... + 526658.

It is an arithmetic number, because the mean of its divisors is an integer number (1874880).

Almost surely, 2^87938025 is an apocalyptic number.

87938025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

87938025 is an abundant number, since it is smaller than the sum of its proper divisors (92050455).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87938025 is a wasteful number, since it uses less digits than its factorization.

87938025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 87938025 is about 9377.5276592501. The cubic root of 87938025 is about 444.6915760418.

The spelling of 87938025 in words is "eighty-seven million, nine hundred thirty-eight thousand, twenty-five".