997002901 has 2 divisors, whose sum is σ = 997002902. Its totient is φ = 997002900.

The previous prime is 997002871. The next prime is 997002913. The reversal of 997002901 is 109200799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 967832100 + 29170801 = 31110^2 + 5401^2 .

It is a cyclic number.

It is not a de Polignac number, because 997002901 - 2²³ = 988614293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997002931) 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, 498501450 + 498501451.

It is an arithmetic number, because the mean of its divisors is an integer number (498501451).

Almost surely, 2^997002901 is an apocalyptic number.

It is an amenable number.

997002901 is a deficient number, since it is larger than the sum of its proper divisors (1).

997002901 is an equidigital number, since it uses as much as digits as its factorization.

997002901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 997002901 is about 31575.3527454564. The cubic root of 997002901 is about 998.9999672679. Note that the first 4 decimals are identical.

The spelling of 997002901 in words is "nine hundred ninety-seven million, two thousand, nine hundred one".