997024403 has 2 divisors, whose sum is σ = 997024404. Its totient is φ = 997024402.

The previous prime is 997024397. The next prime is 997024423. The reversal of 997024403 is 304420799.

It is a weak prime.

It is an emirp because it is prime and its reverse (304420799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 997024403 - 2⁶ = 997024339 is a prime.

It is not a weakly prime, because it can be changed into another prime (997024423) 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, 498512201 + 498512202.

It is an arithmetic number, because the mean of its divisors is an integer number (498512202).

Almost surely, 2^997024403 is an apocalyptic number.

997024403 is a deficient number, since it is larger than the sum of its proper divisors (1).

997024403 is an equidigital number, since it uses as much as digits as its factorization.

997024403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 997024403 is about 31575.6932307115. The cubic root of 997024403 is about 999.0071489063.

The spelling of 997024403 in words is "nine hundred ninety-seven million, twenty-four thousand, four hundred three".