721200479 has 2 divisors, whose sum is σ = 721200480. Its totient is φ = 721200478.

The previous prime is 721200433. The next prime is 721200511. The reversal of 721200479 is 974002127.

It is an a-pointer prime, because the next prime (721200511) can be obtained adding 721200479 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 721200479 - 2¹² = 721196383 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is equal to p_37293044 and since 721200479 and 37293044 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (721200419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360600239 + 360600240.

It is an arithmetic number, because the mean of its divisors is an integer number (360600240).

Almost surely, 2^721200479 is an apocalyptic number.

721200479 is a deficient number, since it is larger than the sum of its proper divisors (1).

721200479 is an equidigital number, since it uses as much as digits as its factorization.

721200479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 721200479 is about 26855.1760187864. The cubic root of 721200479 is about 896.7788053361.

The spelling of 721200479 in words is "seven hundred twenty-one million, two hundred thousand, four hundred seventy-nine".