4722645 has 16 divisors (see below), whose sum is σ = 7585920. Its totient is φ = 2508864.

The previous prime is 4722631. The next prime is 4722661. The reversal of 4722645 is 5462274.

It is not a de Polignac number, because 4722645 - 2¹⁹ = 4198357 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 4947 + ... + 5823.

It is an arithmetic number, because the mean of its divisors is an integer number (474120).

Almost surely, 2^4722645 is an apocalyptic number.

It is an amenable number.

4722645 is a deficient number, since it is larger than the sum of its proper divisors (2863275).

4722645 is a wasteful number, since it uses less digits than its factorization.

4722645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244.

The product of its digits is 13440, while the sum is 30.

The square root of 4722645 is about 2173.1647429498. The cubic root of 4722645 is about 167.7754582406.

The spelling of 4722645 in words is "four million, seven hundred twenty-two thousand, six hundred forty-five".