722661503 has 2 divisors, whose sum is σ = 722661504. Its totient is φ = 722661502.

The previous prime is 722661479. The next prime is 722661547. The reversal of 722661503 is 305166227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722661503 - 2¹⁶ = 722595967 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722661503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722661593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361330751 + 361330752.

It is an arithmetic number, because the mean of its divisors is an integer number (361330752).

Almost surely, 2^722661503 is an apocalyptic number.

722661503 is a deficient number, since it is larger than the sum of its proper divisors (1).

722661503 is an equidigital number, since it uses as much as digits as its factorization.

722661503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 722661503 is about 26882.3641631461. The cubic root of 722661503 is about 897.3839683642.

The spelling of 722661503 in words is "seven hundred twenty-two million, six hundred sixty-one thousand, five hundred three".