87761361 has 48 divisors (see below), whose sum is σ = 136503360. Its totient is φ = 49812480.

The previous prime is 87761347. The next prime is 87761369. The reversal of 87761361 is 16316778.

It is not a de Polignac number, because 87761361 - 2⁵ = 87761329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87761369) 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 47 ways as a sum of consecutive naturals, for example, 1867240 + ... + 1867286.

It is an arithmetic number, because the mean of its divisors is an integer number (2843820).

Almost surely, 2^87761361 is an apocalyptic number.

It is an amenable number.

87761361 is a deficient number, since it is larger than the sum of its proper divisors (48741999).

87761361 is a wasteful number, since it uses less digits than its factorization.

87761361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 127 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 87761361 is about 9368.1033832895. The cubic root of 87761361 is about 444.3935871645.

The spelling of 87761361 in words is "eighty-seven million, seven hundred sixty-one thousand, three hundred sixty-one".