4897645 has 4 divisors (see below), whose sum is σ = 5877180. Its totient is φ = 3918112.

The previous prime is 4897639. The next prime is 4897681. The reversal of 4897645 is 5467984.

4897645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 2244004 + 2653641 = 1498^2 + 1629^2 .

It is a cyclic number.

It is not a de Polignac number, because 4897645 - 2¹³ = 4889453 is a prime.

It is a super-3 number, since 3×4897645³ (a number of 21 digits) contains 333 as substring.

4897645 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489760 + ... + 489769.

It is an arithmetic number, because the mean of its divisors is an integer number (1469295).

Almost surely, 2^4897645 is an apocalyptic number.

It is an amenable number.

4897645 is a deficient number, since it is larger than the sum of its proper divisors (979535).

4897645 is an equidigital number, since it uses as much as digits as its factorization.

4897645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979534.

The product of its digits is 241920, while the sum is 43.

The square root of 4897645 is about 2213.0623579104. The cubic root of 4897645 is about 169.8227102125.

The spelling of 4897645 in words is "four million, eight hundred ninety-seven thousand, six hundred forty-five".