87575761 has 16 divisors (see below), whose sum is σ = 108320128. Its totient is φ = 68947200.

The previous prime is 87575753. The next prime is 87575773. The reversal of 87575761 is 16757578.

It is not a de Polignac number, because 87575761 - 2³ = 87575753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87575701) 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, 16921 + ... + 21481.

It is an arithmetic number, because the mean of its divisors is an integer number (6770008).

Almost surely, 2^87575761 is an apocalyptic number.

It is an amenable number.

87575761 is a deficient number, since it is larger than the sum of its proper divisors (20744367).

87575761 is a wasteful number, since it uses less digits than its factorization.

87575761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4792.

The product of its digits is 411600, while the sum is 46.

The square root of 87575761 is about 9358.1921865283. The cubic root of 87575761 is about 444.0800943757.

It can be divided in two parts, 875 and 75761, that added together give a triangular number (76636 = T₃₉₁).

The spelling of 87575761 in words is "eighty-seven million, five hundred seventy-five thousand, seven hundred sixty-one".