8401605 has 8 divisors (see below), whose sum is σ = 13442592. Its totient is φ = 4480848.

The previous prime is 8401573. The next prime is 8401633. The reversal of 8401605 is 5061048.

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

It is not a de Polignac number, because 8401605 - 2⁵ = 8401573 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 280039 + ... + 280068.

It is an arithmetic number, because the mean of its divisors is an integer number (1680324).

Almost surely, 2^8401605 is an apocalyptic number.

It is an amenable number.

8401605 is a deficient number, since it is larger than the sum of its proper divisors (5040987).

8401605 is a wasteful number, since it uses less digits than its factorization.

8401605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560115.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 8401605 is about 2898.5522248185. The cubic root of 8401605 is about 203.2922174921.

The spelling of 8401605 in words is "eight million, four hundred one thousand, six hundred five".