997464799 has 2 divisors, whose sum is σ = 997464800. Its totient is φ = 997464798.

The previous prime is 997464779. The next prime is 997464847.

It is a happy number.

997464799 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 997464799 - 2¹¹ = 997462751 is a prime.

It is a super-2 number, since 2×997464799² = 1989872050488220802, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 997464799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997464739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498732399 + 498732400.

It is an arithmetic number, because the mean of its divisors is an integer number (498732400).

Almost surely, 2^997464799 is an apocalyptic number.

997464799 is a deficient number, since it is larger than the sum of its proper divisors (1).

997464799 is an equidigital number, since it uses as much as digits as its factorization.

997464799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30862944, while the sum is 64.

The square root of 997464799 is about 31582.6661160834. Note that the first 3 decimals coincide. The cubic root of 997464799 is about 999.1542178542.

The spelling of 997464799 in words is "nine hundred ninety-seven million, four hundred sixty-four thousand, seven hundred ninety-nine".