997454306 has 8 divisors (see below), whose sum is σ = 1496323584. Its totient is φ = 498679780.

The previous prime is 997454299. The next prime is 997454309. The reversal of 997454306 is 603454799.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (997454309) 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 in 3 ways as a sum of consecutive naturals, for example, 15791 + ... + 47373.

It is an arithmetic number, because the mean of its divisors is an integer number (187040448).

Almost surely, 2^997454306 is an apocalyptic number.

It is a pronic number, being equal to 31582×31583.

997454306 is a deficient number, since it is larger than the sum of its proper divisors (498869278).

997454306 is a wasteful number, since it uses less digits than its factorization.

997454306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47376.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 997454306 is about 31582.4999960421. The cubic root of 997454306 is about 999.1507142512.

The spelling of 997454306 in words is "nine hundred ninety-seven million, four hundred fifty-four thousand, three hundred six".