87101471 has 4 divisors (see below), whose sum is σ = 90105000. Its totient is φ = 84097944.

The previous prime is 87101461. The next prime is 87101503. The reversal of 87101471 is 17410178.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87101471 is a prime.

It is a super-3 number, since 3×87101471³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 3003499 = 87101471 / (8 + 7 + 1 + 0 + 1 + 4 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87101461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501721 + ... + 1501778.

It is an arithmetic number, because the mean of its divisors is an integer number (22526250).

Almost surely, 2^87101471 is an apocalyptic number.

87101471 is a deficient number, since it is larger than the sum of its proper divisors (3003529).

87101471 is a wasteful number, since it uses less digits than its factorization.

87101471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003528.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 87101471 is about 9332.8168845210. The cubic root of 87101471 is about 443.2769645230.

The spelling of 87101471 in words is "eighty-seven million, one hundred one thousand, four hundred seventy-one".