997675403 has 2 divisors, whose sum is σ = 997675404. Its totient is φ = 997675402.

The previous prime is 997675391. The next prime is 997675411. The reversal of 997675403 is 304576799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 997675403 - 2¹² = 997671307 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (997675423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498837701 + 498837702.

It is an arithmetic number, because the mean of its divisors is an integer number (498837702).

Almost surely, 2^997675403 is an apocalyptic number.

997675403 is a deficient number, since it is larger than the sum of its proper divisors (1).

997675403 is an equidigital number, since it uses as much as digits as its factorization.

997675403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The square root of 997675403 is about 31586.0001108086. Note that the first 3 decimals coincide. The cubic root of 997675403 is about 999.2245331399.

The spelling of 997675403 in words is "nine hundred ninety-seven million, six hundred seventy-five thousand, four hundred three".