997573463 has 2 divisors, whose sum is σ = 997573464. Its totient is φ = 997573462.

The previous prime is 997573441. The next prime is 997573483. The reversal of 997573463 is 364375799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 997573463 - 2⁶ = 997573399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997573483) 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, 498786731 + 498786732.

It is an arithmetic number, because the mean of its divisors is an integer number (498786732).

Almost surely, 2^997573463 is an apocalyptic number.

997573463 is a deficient number, since it is larger than the sum of its proper divisors (1).

997573463 is an equidigital number, since it uses as much as digits as its factorization.

997573463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4286520, while the sum is 53.

The square root of 997573463 is about 31584.3863799821. The cubic root of 997573463 is about 999.1904992186.

It can be divided in two parts, 9975 and 73463, that added together give a palindrome (83438).

The spelling of 997573463 in words is "nine hundred ninety-seven million, five hundred seventy-three thousand, four hundred sixty-three".