996756403 has 2 divisors, whose sum is σ = 996756404. Its totient is φ = 996756402.

The previous prime is 996756377. The next prime is 996756421. The reversal of 996756403 is 304657699.

It is a strong prime.

It is an emirp because it is prime and its reverse (304657699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 996756403 - 2⁹ = 996755891 is a prime.

It is not a weakly prime, because it can be changed into another prime (996756463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498378201 + 498378202.

It is an arithmetic number, because the mean of its divisors is an integer number (498378202).

Almost surely, 2^996756403 is an apocalyptic number.

996756403 is a deficient number, since it is larger than the sum of its proper divisors (1).

996756403 is an equidigital number, since it uses as much as digits as its factorization.

996756403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The square root of 996756403 is about 31571.4491748478. The cubic root of 996756403 is about 998.9176298976.

The spelling of 996756403 in words is "nine hundred ninety-six million, seven hundred fifty-six thousand, four hundred three".