4600721 has 2 divisors, whose sum is σ = 4600722. Its totient is φ = 4600720.

The previous prime is 4600711. The next prime is 4600751. The reversal of 4600721 is 1270064.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4456321 + 144400 = 2111^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 4600721 - 2⁶ = 4600657 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4600693 and 4600702.

It is not a weakly prime, because it can be changed into another prime (4600711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2300360 + 2300361.

It is an arithmetic number, because the mean of its divisors is an integer number (2300361).

Almost surely, 2^4600721 is an apocalyptic number.

It is an amenable number.

4600721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4600721 is an equidigital number, since it uses as much as digits as its factorization.

4600721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 4600721 is about 2144.9291363586. The cubic root of 4600721 is about 166.3190385433.

Adding to 4600721 its reverse (1270064), we get a palindrome (5870785).

It can be divided in two parts, 4600 and 721, that multiplied together give a triangular number (3316600 = T₂₅₇₅).

The spelling of 4600721 in words is "four million, six hundred thousand, seven hundred twenty-one".