4971605 has 4 divisors (see below), whose sum is σ = 5965932. Its totient is φ = 3977280.

The previous prime is 4971587. The next prime is 4971643. The reversal of 4971605 is 5061794.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2798929 + 2172676 = 1673^2 + 1474^2 .

It is not a de Polignac number, because 4971605 - 2¹⁴ = 4955221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497156 + ... + 497165.

It is an arithmetic number, because the mean of its divisors is an integer number (1491483).

Almost surely, 2^4971605 is an apocalyptic number.

It is an amenable number.

4971605 is a deficient number, since it is larger than the sum of its proper divisors (994327).

4971605 is an equidigital number, since it uses as much as digits as its factorization.

4971605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994326.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 4971605 is about 2229.7096223500. The cubic root of 4971605 is about 170.6732815192.

The spelling of 4971605 in words is "four million, nine hundred seventy-one thousand, six hundred five".