4920645 has 8 divisors (see below), whose sum is σ = 7873056. Its totient is φ = 2624336.

The previous prime is 4920631. The next prime is 4920647. The reversal of 4920645 is 5460294.

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 4920645 - 2⁵ = 4920613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4920647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164007 + ... + 164036.

It is an arithmetic number, because the mean of its divisors is an integer number (984132).

Almost surely, 2^4920645 is an apocalyptic number.

It is an amenable number.

4920645 is a deficient number, since it is larger than the sum of its proper divisors (2952411).

4920645 is a wasteful number, since it uses less digits than its factorization.

4920645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328051.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 4920645 is about 2218.2526907456. The cubic root of 4920645 is about 170.0881319265.

It can be divided in two parts, 4920 and 645, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 4920645 in words is "four million, nine hundred twenty thousand, six hundred forty-five".