87375617 has 4 divisors (see below), whose sum is σ = 99857856. Its totient is φ = 74893380.

The previous prime is 87375593. The next prime is 87375649. The reversal of 87375617 is 71657378.

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 87375617 - 2⁸ = 87375361 is a prime.

It is a super-2 number, since 2×87375617² = 15268996892261378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87375667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6241109 + ... + 6241122.

It is an arithmetic number, because the mean of its divisors is an integer number (24964464).

Almost surely, 2^87375617 is an apocalyptic number.

It is an amenable number.

87375617 is a deficient number, since it is larger than the sum of its proper divisors (12482239).

87375617 is a wasteful number, since it uses less digits than its factorization.

87375617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12482238.

The product of its digits is 246960, while the sum is 44.

The square root of 87375617 is about 9347.4925514814. The cubic root of 87375617 is about 443.7415388984.

The spelling of 87375617 in words is "eighty-seven million, three hundred seventy-five thousand, six hundred seventeen".