4647645 has 32 divisors (see below), whose sum is σ = 8352000. Its totient is φ = 2452032.

The previous prime is 4647631. The next prime is 4647653. The reversal of 4647645 is 5467464.

4647645 is a `hidden beast` number, since 4 + 6 + 4 + 7 + 645 = 666.

It is not a de Polignac number, because 4647645 - 2⁶ = 4647581 is a prime.

It is an Ulam number.

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23256 + ... + 23454.

It is an arithmetic number, because the mean of its divisors is an integer number (261000).

Almost surely, 2^4647645 is an apocalyptic number.

4647645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4647645 is a deficient number, since it is larger than the sum of its proper divisors (3704355).

4647645 is a wasteful number, since it uses less digits than its factorization.

4647645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 380 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 4647645 is about 2155.8397435802. The cubic root of 4647645 is about 166.8825713015.

The spelling of 4647645 in words is "four million, six hundred forty-seven thousand, six hundred forty-five".