721060801 has 2 divisors, whose sum is σ = 721060802. Its totient is φ = 721060800.

The previous prime is 721060783. The next prime is 721060807. The reversal of 721060801 is 108060127.

721060801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 678550401 + 42510400 = 26049^2 + 6520^2 .

It is a cyclic number.

It is not a de Polignac number, because 721060801 - 2¹⁹ = 720536513 is a prime.

It is not a weakly prime, because it can be changed into another prime (721060807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360530400 + 360530401.

It is an arithmetic number, because the mean of its divisors is an integer number (360530401).

Almost surely, 2^721060801 is an apocalyptic number.

It is an amenable number.

721060801 is a deficient number, since it is larger than the sum of its proper divisors (1).

721060801 is an equidigital number, since it uses as much as digits as its factorization.

721060801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 721060801 is about 26852.5753141109. The cubic root of 721060801 is about 896.7209072615.

The spelling of 721060801 in words is "seven hundred twenty-one million, sixty thousand, eight hundred one".