721429363 has 2 divisors, whose sum is σ = 721429364. Its totient is φ = 721429362.

The previous prime is 721429301. The next prime is 721429369. The reversal of 721429363 is 363924127.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-721429363 is a prime.

It is not a weakly prime, because it can be changed into another prime (721429369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360714681 + 360714682.

It is an arithmetic number, because the mean of its divisors is an integer number (360714682).

Almost surely, 2^721429363 is an apocalyptic number.

721429363 is a deficient number, since it is larger than the sum of its proper divisors (1).

721429363 is an equidigital number, since it uses as much as digits as its factorization.

721429363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 721429363 is about 26859.4371311091. The cubic root of 721429363 is about 896.8736641241.

The spelling of 721429363 in words is "seven hundred twenty-one million, four hundred twenty-nine thousand, three hundred sixty-three".