7001605 has 8 divisors (see below), whose sum is σ = 9048312. Its totient is φ = 5170368.

The previous prime is 7001597. The next prime is 7001639. The reversal of 7001605 is 5061007.

It can be written as a sum of positive squares in 4 ways, for example, as 289 + 7001316 = 17^2 + 2646^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7001605 - 2³ = 7001597 is a prime.

7001605 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53794 + ... + 53923.

It is an arithmetic number, because the mean of its divisors is an integer number (1131039).

Almost surely, 2^7001605 is an apocalyptic number.

It is an amenable number.

7001605 is a deficient number, since it is larger than the sum of its proper divisors (2046707).

7001605 is a wasteful number, since it uses less digits than its factorization.

7001605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107735.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 7001605 is about 2646.0546101696. The cubic root of 7001605 is about 191.3077374197.

The spelling of 7001605 in words is "seven million, one thousand, six hundred five".