87611641 has 8 divisors (see below), whose sum is σ = 99317120. Its totient is φ = 76615632.

The previous prime is 87611627. The next prime is 87611663. The reversal of 87611641 is 14611678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87611641 - 2⁵ = 87611609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87611597 and 87611606.

It is not an unprimeable number, because it can be changed into a prime (87611141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177105 + ... + 177598.

It is an arithmetic number, because the mean of its divisors is an integer number (12414640).

Almost surely, 2^87611641 is an apocalyptic number.

It is an amenable number.

87611641 is a deficient number, since it is larger than the sum of its proper divisors (11705479).

87611641 is a wasteful number, since it uses less digits than its factorization.

87611641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354735.

The product of its digits is 8064, while the sum is 34.

The square root of 87611641 is about 9360.1090271428. The cubic root of 87611641 is about 444.1407329896.

The spelling of 87611641 in words is "eighty-seven million, six hundred eleven thousand, six hundred forty-one".