87573685 has 8 divisors (see below), whose sum is σ = 105160536. Its totient is φ = 70010880.

The previous prime is 87573677. The next prime is 87573697. The reversal of 87573685 is 58637578.

It can be written as a sum of positive squares in 4 ways, for example, as 31877316 + 55696369 = 5646^2 + 7463^2 .

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

It is not a de Polignac number, because 87573685 - 2³ = 87573677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3325 + ... + 13645.

It is an arithmetic number, because the mean of its divisors is an integer number (13145067).

Almost surely, 2^87573685 is an apocalyptic number.

It is an amenable number.

87573685 is a deficient number, since it is larger than the sum of its proper divisors (17586851).

87573685 is a wasteful number, since it uses less digits than its factorization.

87573685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12023.

The product of its digits is 1411200, while the sum is 49.

The square root of 87573685 is about 9358.0812670120. The cubic root of 87573685 is about 444.0765853471.

The spelling of 87573685 in words is "eighty-seven million, five hundred seventy-three thousand, six hundred eighty-five".