87925189 has 4 divisors (see below), whose sum is σ = 95918400. Its totient is φ = 79931980.

The previous prime is 87925157. The next prime is 87925199. The reversal of 87925189 is 98152978.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87925189 - 2⁵ = 87925157 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87925199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3996589 + ... + 3996610.

It is an arithmetic number, because the mean of its divisors is an integer number (23979600).

Almost surely, 2^87925189 is an apocalyptic number.

It is an amenable number.

87925189 is a deficient number, since it is larger than the sum of its proper divisors (7993211).

87925189 is a wasteful number, since it uses less digits than its factorization.

87925189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7993210.

The product of its digits is 362880, while the sum is 49.

The square root of 87925189 is about 9376.8432321331. The cubic root of 87925189 is about 444.6699383076.

The spelling of 87925189 in words is "eighty-seven million, nine hundred twenty-five thousand, one hundred eighty-nine".