398762503 has 2 divisors, whose sum is σ = 398762504. Its totient is φ = 398762502.

The previous prime is 398762479. The next prime is 398762527. The reversal of 398762503 is 305267893.

It is a balanced prime because it is at equal distance from previous prime (398762479) and next prime (398762527).

It is a cyclic number.

It is not a de Polignac number, because 398762503 - 2⁵ = 398762471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 398762503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398762593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199381251 + 199381252.

It is an arithmetic number, because the mean of its divisors is an integer number (199381252).

Almost surely, 2^398762503 is an apocalyptic number.

398762503 is a deficient number, since it is larger than the sum of its proper divisors (1).

398762503 is an equidigital number, since it uses as much as digits as its factorization.

398762503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 398762503 is about 19969.0386098079. The cubic root of 398762503 is about 736.0456851515.

The spelling of 398762503 in words is "three hundred ninety-eight million, seven hundred sixty-two thousand, five hundred three".