4947645 has 16 divisors (see below), whose sum is σ = 8260992. Its totient is φ = 2523840.

The previous prime is 4947617. The next prime is 4947653. The reversal of 4947645 is 5467494.

It is a happy number.

It is not a de Polignac number, because 4947645 - 2⁷ = 4947517 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 9² + 4⁹ + 7 + 6⁸ + 4¹⁰ + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6826 + ... + 7515.

It is an arithmetic number, because the mean of its divisors is an integer number (516312).

Almost surely, 2^4947645 is an apocalyptic number.

It is an amenable number.

4947645 is a deficient number, since it is larger than the sum of its proper divisors (3313347).

4947645 is a wasteful number, since it uses less digits than its factorization.

4947645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14372.

The product of its digits is 120960, while the sum is 39.

The square root of 4947645 is about 2224.3302362734. The cubic root of 4947645 is about 170.3986606939.

Adding to 4947645 its product of digits (120960), we get a palindrome (5068605).

The spelling of 4947645 in words is "four million, nine hundred forty-seven thousand, six hundred forty-five".