89685505 has 32 divisors (see below), whose sum is σ = 133056000. Its totient is φ = 56512512.

The previous prime is 89685503. The next prime is 89685509. The reversal of 89685505 is 50558698.

It is a happy number.

It is not a de Polignac number, because 89685505 - 2¹ = 89685503 is a prime.

It is a super-3 number, since 3×89685505³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (89685503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199521 + ... + 199969.

It is an arithmetic number, because the mean of its divisors is an integer number (4158000).

Almost surely, 2^89685505 is an apocalyptic number.

It is an amenable number.

89685505 is a deficient number, since it is larger than the sum of its proper divisors (43370495).

89685505 is a wasteful number, since it uses less digits than its factorization.

89685505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its (nonzero) digits is 432000, while the sum is 46.

The square root of 89685505 is about 9470.2431330985. The cubic root of 89685505 is about 447.6178730927.

The spelling of 89685505 in words is "eighty-nine million, six hundred eighty-five thousand, five hundred five".