997739033 has 2 divisors, whose sum is σ = 997739034. Its totient is φ = 997739032.

The previous prime is 997738991. The next prime is 997739047. The reversal of 997739033 is 330937799.

It is a happy number.

997739033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990486784 + 7252249 = 31472^2 + 2693^2 .

It is a cyclic number.

It is not a de Polignac number, because 997739033 - 2¹⁸ = 997476889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (997739833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498869516 + 498869517.

It is an arithmetic number, because the mean of its divisors is an integer number (498869517).

Almost surely, 2^997739033 is an apocalyptic number.

It is an amenable number.

997739033 is a deficient number, since it is larger than the sum of its proper divisors (1).

997739033 is an equidigital number, since it uses as much as digits as its factorization.

997739033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 964467, while the sum is 50.

The square root of 997739033 is about 31587.0073447929. The cubic root of 997739033 is about 999.2457756219.

The spelling of 997739033 in words is "nine hundred ninety-seven million, seven hundred thirty-nine thousand, thirty-three".