87190641 has 32 divisors (see below), whose sum is σ = 134131200. Its totient is φ = 55935360.

The previous prime is 87190619. The next prime is 87190643. The reversal of 87190641 is 14609178.

87190641 is a `hidden beast` number, since 8 + 7 + 1 + 9 + 0 + 641 = 666.

It is not a de Polignac number, because 87190641 - 2⁶ = 87190577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87190596 and 87190605.

It is not an unprimeable number, because it can be changed into a prime (87190643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86955 + ... + 87951.

It is an arithmetic number, because the mean of its divisors is an integer number (4191600).

Almost surely, 2^87190641 is an apocalyptic number.

It is an amenable number.

87190641 is a deficient number, since it is larger than the sum of its proper divisors (46940559).

87190641 is a wasteful number, since it uses less digits than its factorization.

87190641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 87190641 is about 9337.5928911042. The cubic root of 87190641 is about 443.4281809742.

The spelling of 87190641 in words is "eighty-seven million, one hundred ninety thousand, six hundred forty-one".