997469453 has 2 divisors, whose sum is σ = 997469454. Its totient is φ = 997469452.

The previous prime is 997469383. The next prime is 997469477. The reversal of 997469453 is 354964799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704477764 + 292991689 = 26542^2 + 17117^2 .

It is a cyclic number.

It is not a de Polignac number, because 997469453 - 2¹⁰ = 997468429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997409453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498734726 + 498734727.

It is an arithmetic number, because the mean of its divisors is an integer number (498734727).

Almost surely, 2^997469453 is an apocalyptic number.

It is an amenable number.

997469453 is a deficient number, since it is larger than the sum of its proper divisors (1).

997469453 is an equidigital number, since it uses as much as digits as its factorization.

997469453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7348320, while the sum is 56.

The square root of 997469453 is about 31582.7397956542. The cubic root of 997469453 is about 999.1557718127.

The spelling of 997469453 in words is "nine hundred ninety-seven million, four hundred sixty-nine thousand, four hundred fifty-three".