87852569 has 8 divisors (see below), whose sum is σ = 102738240. Its totient is φ = 73550736.

The previous prime is 87852563. The next prime is 87852577. The reversal of 87852569 is 96525878.

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

It is not a de Polignac number, because 87852569 - 2¹² = 87848473 is a prime.

It is a super-2 number, since 2×87852569² = 15436147759799522, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87852563) 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, 145634 + ... + 146235.

It is an arithmetic number, because the mean of its divisors is an integer number (12842280).

Almost surely, 2^87852569 is an apocalyptic number.

It is an amenable number.

87852569 is a deficient number, since it is larger than the sum of its proper divisors (14885671).

87852569 is a wasteful number, since it uses less digits than its factorization.

87852569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291919.

The product of its digits is 1209600, while the sum is 50.

The square root of 87852569 is about 9372.9701269128. The cubic root of 87852569 is about 444.5474825940.

The spelling of 87852569 in words is "eighty-seven million, eight hundred fifty-two thousand, five hundred sixty-nine".