997499205 has 48 divisors (see below), whose sum is σ = 1805241984. Its totient is φ = 528379200.

The previous prime is 997499197. The next prime is 997499207. The reversal of 997499205 is 502994799.

997499205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 997499205 - 2³ = 997499197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997499207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 180747 + ... + 186183.

It is an arithmetic number, because the mean of its divisors is an integer number (37609208).

Almost surely, 2^997499205 is an apocalyptic number.

It is an amenable number.

997499205 is a deficient number, since it is larger than the sum of its proper divisors (807742779).

997499205 is a wasteful number, since it uses less digits than its factorization.

997499205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5608 (or 5596 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The square root of 997499205 is about 31583.2108089092. The cubic root of 997499205 is about 999.1657058134.

The spelling of 997499205 in words is "nine hundred ninety-seven million, four hundred ninety-nine thousand, two hundred five".