87511101 has 8 divisors (see below), whose sum is σ = 118659360. Its totient is φ = 57351792.

The previous prime is 87511091. The next prime is 87511103. The reversal of 87511101 is 10111578.

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

It is not a de Polignac number, because 87511101 - 2⁵ = 87511069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87511103) 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, 247030 + ... + 247383.

It is an arithmetic number, because the mean of its divisors is an integer number (14832420).

Almost surely, 2^87511101 is an apocalyptic number.

It is an amenable number.

87511101 is a deficient number, since it is larger than the sum of its proper divisors (31148259).

87511101 is a wasteful number, since it uses less digits than its factorization.

87511101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494475.

The product of its (nonzero) digits is 280, while the sum is 24.

The square root of 87511101 is about 9354.7368215252. The cubic root of 87511101 is about 443.9707745961.

Adding to 87511101 its reverse (10111578), we get a palindrome (97622679).

The spelling of 87511101 in words is "eighty-seven million, five hundred eleven thousand, one hundred one".