87735173 has 4 divisors (see below), whose sum is σ = 87880320. Its totient is φ = 87590028.

The previous prime is 87735163. The next prime is 87735199. The reversal of 87735173 is 37153778.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87735173 - 2¹⁰ = 87734149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87735173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87735143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71663 + ... + 72876.

It is an arithmetic number, because the mean of its divisors is an integer number (21970080).

Almost surely, 2^87735173 is an apocalyptic number.

It is an amenable number.

87735173 is a deficient number, since it is larger than the sum of its proper divisors (145147).

87735173 is a wasteful number, since it uses less digits than its factorization.

87735173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145146.

The product of its digits is 123480, while the sum is 41.

The square root of 87735173 is about 9366.7055574519. The cubic root of 87735173 is about 444.3493804016.

The spelling of 87735173 in words is "eighty-seven million, seven hundred thirty-five thousand, one hundred seventy-three".