8985405 has 64 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 3897600.

The previous prime is 8985391. The next prime is 8985451. The reversal of 8985405 is 5045898.

8985405 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8985405 - 2⁵ = 8985373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126520 + ... + 126590.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

Almost surely, 2^8985405 is an apocalyptic number.

It is an amenable number.

8985405 is a deficient number, since it is larger than the sum of its proper divisors (8432835).

8985405 is a wasteful number, since it uses less digits than its factorization.

8985405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 8985405 is about 2997.5665130235. The cubic root of 8985405 is about 207.8958813836.

The spelling of 8985405 in words is "eight million, nine hundred eighty-five thousand, four hundred five".