4968721 has 2 divisors, whose sum is σ = 4968722. Its totient is φ = 4968720.

The previous prime is 4968707. The next prime is 4968727. The reversal of 4968721 is 1278694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3441025 + 1527696 = 1855^2 + 1236^2 .

It is a cyclic number.

It is not a de Polignac number, because 4968721 - 2⁹ = 4968209 is a prime.

It is a d-powerful number, because it can be written as 4⁸ + 9⁷ + 6 + 8³ + 7⁶ + 2¹¹ + 1 .

It is not a weakly prime, because it can be changed into another prime (4968727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2484360 + 2484361.

It is an arithmetic number, because the mean of its divisors is an integer number (2484361).

Almost surely, 2^4968721 is an apocalyptic number.

It is an amenable number.

4968721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4968721 is an equidigital number, since it uses as much as digits as its factorization.

4968721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 4968721 is about 2229.0628075494. The cubic root of 4968721 is about 170.6402729332.

The spelling of 4968721 in words is "four million, nine hundred sixty-eight thousand, seven hundred twenty-one".