4652721 has 24 divisors (see below), whose sum is σ = 7154784. Its totient is φ = 3019680.

The previous prime is 4652719. The next prime is 4652723. The reversal of 4652721 is 1272564.

4652721 is a `hidden beast` number, since 4 + 652 + 7 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (4652719) and next prime (4652723).

It is not a de Polignac number, because 4652721 - 2¹ = 4652719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4652723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9730 + ... + 10196.

It is an arithmetic number, because the mean of its divisors is an integer number (298116).

Almost surely, 2^4652721 is an apocalyptic number.

4652721 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4652721 is a deficient number, since it is larger than the sum of its proper divisors (2502063).

4652721 is an equidigital number, since it uses as much as digits as its factorization.

4652721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 511 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 4652721 is about 2157.0166897824. The cubic root of 4652721 is about 166.9433036888.

The spelling of 4652721 in words is "four million, six hundred fifty-two thousand, seven hundred twenty-one".